Login to my account fails - no desktop

My MBP started acting slow last night, really slow like in molasses. I came out this morning and it would not display the sleep login screen, so I rebooted the computer. It booted fine and displayed the user account login screen. I logged in and it gets to where it shows the default space theme background image but then stops. It never shows menus, icons, the dock, nothing that is part of the desktop or Finder. I can see and access my computer drive from other LAN Macs so I checked disk space and it was 9.7GB. I figured maybe it was too low so I freed up enough to have 12.5GB free and rebooted. Same thing.
What is going on? How can I fix this?

My problem turned out to be my MBP internal hard drive dieing. It's about 1 year old and therefore I'm glad to have Apple Care. Basically I/O errors starting increasing to the point where I had frequent application crashes, then some stopped evening opening, common ones like FF and iCal. I did a full backup and looked at the log and the I/O errors were sprinkled here and there. Then the SMART status in Disk Utilities indicated the drive had to be replaced. So hopefully tomorrow I get my MBP back with a new h/d.
As an aside... My wife's iBook 14" that she purchased fall of '04 had the screen lose one pixel column days after the 1 yr warranty ended. My advise for all LCD products is "get Apple Care". All it takes is something to go wrong with the LCD and the replacement cost of that item alone will sink you hundreds of dollars. And no, I have no connection with Apple, just a happy owner of Mac computers since 1984.
Message was edited by: TeaMan
Message was edited by: TeaMan

Similar Messages

Login to admin account fails suddenly

Hi!
I have quite a strange problem here; I could not find infos about this (I am quite a new Mac user - and didn't have such big problems so far...):
when I started my Mac today, all my user settings etc. were gone - it seemed like my Mac was brand new (all settings as factory setting - no program remembered me - e.g. Mail or Adium or iCal). I have put my user directory on an external hard drive, and suspected that this might have been the problem (the Finder didn't show my documts or photo folders, and other things). Although the external hard drive was working fine and shown in Finder, I checked the respective settings in the control panel (user settings); it was still correctly set. Even if, I reset the path again using the "Browse" dialogue to the same folder; I was a bit astonished that the name of the hard drive shown was a bit different (OS X added a "1" behind the real names shown in Finder - so it was "sarah 1" instead of "sarah"; however, I trusted OS X in this, and thought that this was the reason why I couldn't reach my user account data via the Finder.
So I trusted the settings and left them, and then restarted: At this time, OS X gave the message that (I translate from German): "You cannot login with this user name. The login process with this user name failed due to an error."; that's where I'm stuck. The astonishing point is that the password I give is correct - and in fact, OS X also still remembers my additional question; so, a password problem seems to be ruled out. Thus, I believe that the path to my user data is still incorrect, and that some information is kept there for the start-up. Even if the Mac earlier this evening started correctly, despite the user path seemed to be corrupted (the data were not shown, as said above) - now the unavailability of the user path seems to have "worsened", and keeps OS X from logging into my account.
The account is my only administrator account; I am a bit worried that my other user accounts are not shown in the login screen - but I never used it before.
Anyway - I believe, what COULD help me would be to find a way to reset the user account path (the old path should still be on the external Macintosh HD, although most utility data are missing) - thus, I believe, what could help me would be if I could reset the user account settings so that the Mac doesn't search for the data on the external hard drive (which path seems to be wrong); however, I don't seem to be able to change the settings if I can't reach beyond the login screen.
Thus, my question: can anybody tell me how I can reach my account settings now? Is there any utility on the reset disc of my Mac that could help me to start into a safe mode that would at least allow me (after supplying the admin password) to change the admin user settings? Or does anybody have any other suggestions? I am lost here a bit, although I principally believe I can do at least a bit about Computers...
Thanks for any help! Sorry for this long text! Greetings to all readers who have survived till this point!
Björn

Hi, V.K.!
Thanks a lot for Your detailled answer! Admittedly, I had problems to follow Your suggestions exactly, because I couldn't get my Mac (mini) to start from the install DVD (I only tried disc I - it came with the mini in february, but I think it is the original install DVD - thus I believe, it should also contain the utilities You were talking about). In fact, the Mac didn't want to boot from the DVD - I guess the problem was my USB Bluetooth keyboard (Logitech), which I never tried to connect to the Mac directly.
Anyway - when I was trying different key combinations (in addition to just typing "C" to boot from the DVD) at startup to see whether the install DVD was the problem or the keyboard, I used the command-S key combination to start in single user mode... in the command line, I tried if I could find a way to make the Mac start from the DVD (which was still in the drive) - but couldn't. When I typed "exit", the Mac booted normally, and I was back in the Finder, where I could reset the problem with the user data path. Thus, this problem was solved - though in an erroneous (and thus not really satisfying) way...
Anyway, I still have the problem with my user account - although the path is now correctly set again and the Mac boots as before, all my user data and settings (including the iCal data etc.) are still not connected, although they are still on the external hard drive... The Mac does not show me the "documents" or "downloads" or "desktop" options under "places" in Finder, and also my iTunes and iPhoto libraries are not available there - although the data are still present in the user folder on the external hard drive (the one that is now set again to be my user home folder in the "user" control panel). I don't know how this happened - and why my Mac doesn't seem to recognize the data and show them. The last thing I did was to do the Leopard system update on wednesday morning (which was a Java update) - and in the evening all my settings appeared to have been erased (as described before).
Does anybody have any explanations for this - or, even better: any solutions? I feel a bit lost - as if my Mac was making jokes with me
Thanks for any hints!
With kind regards,
Björn
Message was edited by: bBcuda

Login to Adobe account fails for all web resources and has for a week.

Somehow it let me post a reply to one of my posts in this forum, and I'm hoping it will allow me to post this new thread as for the rest.... I'm posting here because this is the first place it has let me post, and I'm trying to get FB4.7b to ACCEPT the serial number Adobe gives when you download the installer OR... on the off chance that that never would work but might somehow work in b2, download and install b2 and see if it will accept the serial number then. Very disconcerting to watch your 'trial period' count down when you -own- FB 4.5/6 and have a valid serial number and the one given as a dummy s/n fails. Cheers!
For instance:
Attempting to download FB4.7b2: from http://labs.adobe.com/technologies/flashbuilder4-7/to http://www.adobe.com/cfusion/entitlement/index.cfm?e=labs_flashbuilder4-7
http://www.adobe.com/cfusion/entitlement/index.cfm?e=labs_flashbuilder4-7Trying to access my account details here (It shows Bramblethorne as logged in and gives me the Sign out) option.
Trying to post a comment to an article in the online documentation
I've tried to access other locations, developer/help/download/forum/etc and they all fail as well.
All result in the following
Error processing your request
We're sorry, we encountered an error processing your request.
Please try your request again. You may wish to try one of the following links:

Somehow it let me post a reply to one of my posts in this forum, and I'm hoping it will allow me to post this new thread as for the rest.... I'm posting here because this is the first place it has let me post, and I'm trying to get FB4.7b to ACCEPT the serial number Adobe gives when you download the installer OR... on the off chance that that never would work but might somehow work in b2, download and install b2 and see if it will accept the serial number then. Very disconcerting to watch your 'trial period' count down when you -own- FB 4.5/6 and have a valid serial number and the one given as a dummy s/n fails. Cheers!
For instance:
Attempting to download FB4.7b2: from http://labs.adobe.com/technologies/flashbuilder4-7/to http://www.adobe.com/cfusion/entitlement/index.cfm?e=labs_flashbuilder4-7
http://www.adobe.com/cfusion/entitlement/index.cfm?e=labs_flashbuilder4-7Trying to access my account details here (It shows Bramblethorne as logged in and gives me the Sign out) option.
Trying to post a comment to an article in the online documentation
I've tried to access other locations, developer/help/download/forum/etc and they all fail as well.
All result in the following
Error processing your request
We're sorry, we encountered an error processing your request.
Please try your request again. You may wish to try one of the following links:

Trouble adding Yahoo! email account. Error: Login to the account failed, please try again.

I have read several discussions about this topic. I have tried manual set up, deleting the account multiple times and nothing works. Please help!

Now I can't speak to Catnzdogs's results of it not working after a FR ... That indeed is strange.
But I would try doing the following, as it really sounds like you have an Invalid userid & password "cached" that is giving you that error .. So try this:
- Go into Settings / Applications / Manage Applications, Click on the ALL Tab
- Scroll down to EMAIL (you may have as many as 4 of them > EMAIL, EMAIL ACCOUNTS, EMAIL AUTHENTICATOR, EMAIL ENGINE)
- Select each 1 of them & click on Clear Data & Clear Cache for each
- exit out of the settings
- Launch your email App - it SHOULD prompt you for your login info & password - make sure you enter it correctly the 1st time, else it will save the bad information in cache again.
Let us know what happens & what specific error msg you get, if any. good luck

Email failure: "Error: Login to the account failed, please try again."

sbcglobal.net - won't auto add, won't allow manual add, wireless is off, have deleted email AND Yahoo mail accounts, but can't re-add, turned phone off and on. Was working until yesterday, then stopped downloading mail. Amusing correct username and password and have no problem accessing web mail from PC. Have not dropped or damaged the phone. Feeling hosed here. Any ideas how to make it work again?

Now I can't speak to Catnzdogs's results of it not working after a FR ... That indeed is strange.
But I would try doing the following, as it really sounds like you have an Invalid userid & password "cached" that is giving you that error .. So try this:
- Go into Settings / Applications / Manage Applications, Click on the ALL Tab
- Scroll down to EMAIL (you may have as many as 4 of them > EMAIL, EMAIL ACCOUNTS, EMAIL AUTHENTICATOR, EMAIL ENGINE)
- Select each 1 of them & click on Clear Data & Clear Cache for each
- exit out of the settings
- Launch your email App - it SHOULD prompt you for your login info & password - make sure you enter it correctly the 1st time, else it will save the bad information in cache again.
Let us know what happens & what specific error msg you get, if any. good luck

Can not log into server computer with any accounts - "You are unable to login to the user account "abcdefg" at this time. Logging in to the account failed because an error occurred."

I have a Mac mini running the latest version of OS X and Server. Been running fine and flawlessly. However, I had a strange problem with the iCloud preferences panel crashing when I tried to access it, so I rebooted. Now I can not log into the system with any accounts. My master admin account (along with all the others) gives me the error:
You are unable to login to the user account "abcdefg" at this time. Logging in to the account failed because an error occurred."
I am able to see the server from other macs and I can log into it using the same account, but it only shows me a few of the shared folders I have access to but NOT to my main directories.
Rebooting into Command-R and doing a disk utility, I try and repair permission on that drive and get a bunch of errors like:
ACL found but not expected on Users
Repaired "Users"
ACL found but not expected on Users/.localized
Repaired "Users/.localized"
ACL found but not expected on Users/Shared
Repaired "Users/shared"
ACL found but not expected on Users/Shared/.localized
Repaired "Users/Shared/.localized"
Permissions repair complete.
But rebooting is no joy...same problem. Any idea what is going on or how to repair it? Should I do a time machine restore? Complete new OS X install? Any idea what is causing this or how to salvage it?

Got everything to re-install and it worked fine...for a few hours. Then I came in to find ALL of my network users deleted. Just GONE. Then found out the Open Directory was trashed and was unable to open, recover or restore from a backup. Looks like I may have a bad drive here.
I installed a new drive in the system, re-installed and so far (for a couple of hours anyway) the system seems to be working and stable.

Main account fails to login

I am using a G4 iBook running OS X 10.4.10. I have already run repair permissions and the automated maintenance of Onyx.
The main account I use, which is not an admin account, fails to login. My wife's account and the admin account both still works. What happens is that I select the account and type in the password. When I hit enter the password is highlighted and the "log in" and "back" buttons become disabled. However, the loading bar does not appear at all and no logging in happens. I have noticed that I can still re-enter the password but the buttons are still disabled. I have the restart the computer to get back to the login screen.
This problem began immediately after the computer suddenly turned off while I was browsing the iTunes store.
Message was edited by: Robert Monroe

Two things to try, Robert. Go to System Preferences > Accounts and see if there is anything strange in your Login Items.
Then boot from your Mac OS X install DVD and go to Disk Utility and run repair disk. You've already correctly run repair permissions (you do this while booted from your internal HD). But you have to boot from your install DVD to run repair disk. Somethin in your Mac's directory might have been disturbed when the computer suddenly turned off while you were using it. Repair disk is capable of fixing some of these problems.
Regards,
Steve M.

An account failed to log on unknown username or password. Causing Login audit failures

I have a SBS11 Essentials server that is getting audit Failures over and over again. There computer account says it's the SBS11 server it's self. It says unknown user name or bad password. I have checked for scheduled tasks, backup jobs, services and
non of them are using any special user accounts. I have used MS network monitor and can't find anything helpful to lead to the issue. All computers in the network are running Windows 7. The domain functional level is 2008 R2.
I get a the 4768 event ID about a Kerberos event and then just after I get a Event ID 4625 account failure with Logon Type 3. I have includes the events below. I need to figure what is causing the audit failures as my GFI Test Hacker alert is
catching it every morning. Disabling the Test Hacker alert is not a option. I have used Process Explorer also but can't seem to pin it down. I also enabled Kerberos logging.
http://support.microsoft.com/kb/262177?wa=wsignin1.0. All event codes state its a unknown or no existing account but how do I stop it from happening?
This is from the System Event log
A Kerberos Error Message was received:
on logon session TH.LOCAL\thsbs11e$
Client Time:
Server Time: 14:59:53.0000 3/4/2014 Z
Error Code: 0x6 KDC_ERR_C_PRINCIPAL_UNKNOWN
Extended Error:
Client Realm:
Client Name:
Server Realm: TH.LOCAL
Server Name: krbtgt/TH.LOCAL
Target Name: krbtgt/[email protected]
Error Text:
File: e
Line: 9fe
Error Data is in record data.
This is from the Security Event log
A Kerberos authentication ticket (TGT) was requested.
Account Information:
Account Name: S-1-5-21-687067891-4024245798-968362083-1000
Supplied Realm Name: TH.LOCAL
User ID: NULL SID
Service Information:
Service Name: krbtgt/TH.LOCAL
Service ID: NULL SID
Network Information:
Client Address: ::1
Client Port: 0
Additional Information:
Ticket Options: 0x40810010
Result Code: 0x6
Ticket Encryption Type: 0xffffffff
Pre-Authentication Type: -
Certificate Information:
Certificate Issuer Name:
Certificate Serial Number:
Certificate Thumbprint:
Certificate information is only provided if a certificate was used for pre-authentication.
Pre-authentication types, ticket options, encryption types and result codes are defined in RFC 4120.
I then get teh following error in the next event
An account failed to log on.
Subject:
Security ID: SYSTEM
Account Name: THSBS11E$
Account Domain: TH
Logon ID: 0x3e7
Logon Type: 3
Account For Which Logon Failed:
Security ID: NULL SID
Account Name:
Account Domain:
Failure Information:
Failure Reason: Unknown user name or bad password.
Status: 0xc000006d
Sub Status: 0xc0000064
Process Information:
Caller Process ID: 0x25c
Caller Process Name: C:\Windows\System32\lsass.exe
Network Information:
Workstation Name: THSBS11E
Source Network Address: -
Source Port: -
Detailed Authentication Information:
Logon Process: Schannel
Authentication Package: Kerberos
Transited Services: -
Package Name (NTLM only): -
Key Length: 0
This event is generated when a logon request fails. It is generated on the computer where access was attempted.
The Subject fields indicate the account on the local system which requested the logon. This is most commonly a service such as the Server service, or a local process such as Winlogon.exe or Services.exe.
The Logon Type field indicates the kind of logon that was requested. The most common types are 2 (interactive) and 3 (network).
The Process Information fields indicate which account and process on the system requested the logon.
The Network Information fields indicate where a remote logon request originated. Workstation name is not always available and may be left blank in some cases.
The authentication information fields provide detailed information about this specific logon request.
- Transited services indicate which intermediate services have participated in this logon request.
- Package name indicates which sub-protocol was used among the NTLM protocols.
- Key length indicates the length of the generated session key. This will be 0 if no session key was requested.

Well I opened the case for him and he never followed up with Microsoft :-(
It's a kerberos issue, we're told to ignore it. Would you be willing to be patient and stubborn and work with CSS to at least understand what's going on better? I can tell you it's normal with Essentials but not the exact technical reason it's
happening.
Unfortunately TechNet isn't coming back, sorry folks :-(

Computer Managed Prefs: Local Login Account Fails

I have ann intel Mac running Tiger. It is also bound tom active directory so that network accounts can login to it. The problem is that when I use the managed computer prefs from the tiger server workgroup manager, the local account cannot login, however when I remove the computer from the list it will login the local account.
I have deleted the account and tried a fresh one. I have reset the PRAM. HAs anyone else experienced this problem. Since I am only managing the prefs at the machine level it should not affect users accounts like this.....
Is there a real good source for management tips using the workgroup manager....There are some issues I have with this tool and maybe I can get some more insight into how to deal with some of the holes in the system....

Since I am only managing the prefs at the machine level it should not affect users accounts like this...
Yes, it will.
In WGM click the 'Preferences' icon. Click the 'Computer Group' icon (double rectangle). Click the 'Login' icon. Click 'Options'. Check the checkbox labelled, 'Local administrators may refresh or disable management'. Click 'Apply'.
To allow your AD domain admins to administer your workstations, in Directory Utility.app click the 'Services' icon. Click on the 'Active Directory' plugin. Toggle the triangle next to 'Show Advanced Options'. Click the 'Administrative' tab. Check the 'Allow administration by:' checkbox. Add the AD admin groups that you wish to allow admin level access on your client workstations. Click 'OK'. Click 'Apply'.
You can take a look at the two resources below on Active Directory integration and OS X client management for more information.
Mike Bombich's, 'Leveraging Active Directory on Mac OS X':
http://www.bombich.com/mactips/activedir.html
John DeTroye's, 'Tips and Tricks for Macintosh Management, Leopard Edition':
http://homepage.mac.com/johnd/.Public/tandtleo14.3.pdf

Azure AAD Mobile Service Authentication with corporate accounts fails.

I have been having on-going issue with Authenticating against a Windows Azure mobile service with corporate accounts.
Here is the complete environment.
Initially we set up with Office 365 / CRM Online / and Azure for our corporate infrastructure. We have set up single sign on. Everything works well. There is ADFS set up and running to allow us to Authenticate with {username}@{companyDomainName} and everything
works, including single signon.
Along comes Azure Active directory. We have an Automatically created Azure active directory in the corporate azure account. The domain is the default created {accountname}.onmicrosoft.com domain structure. This is set as the Default directory.
We had a consultant come in, who was organized through Microsoft, to do some work. After everything was set and done we ended up with another active directory created in Azure that is named with the corporate domain name. This second domain has had all of
the corporate accounts synched to it.
I have now created an Azure Mobile Service. The service is a basic service, I haven't updated any of the code yet, except to publish the service. I have followed all of the configuration instructions for setting up the authentication.
If configure the Authentication to point at the first active directory, I am able to Authenticate against the service using the credentials for a user that has been created in that domain. The Authentication works correctly, and goes through.
However if I switch the configuration to use the second Active Directory, the one with the corporate accounts synched to it, the authentication fails. I am able to enter my corporate email address into the web page that is presented. Then the web control
started to call into the ADFS in order to authenticate the corporate user name and password. At this point the authentication fails with a message about the service not being available.
The login code is the standard:
user = await App.MobileService.LoginAsync(MobileServiceAuthenticationProvider.WindowsAzureActiveDirectory);
The project is a Universal Application as the service needs to be available from both a phone and a desktop. The project was started from the starter project downloaded form the Mobile Service site.
# Update
I've just switched the mobile service configuration back to use the AAD with the corporate accounts synchronized. The login through the application fails. However if I log in through IE by browsing to : https://{ServiceName}.azure-mobile.net/login/aad
The authentication goes through correctly.

A few questions on the details:
What client platform are you using for login. In particular, is this a Windows Store application?
What do you mean exactly by "authentication fails?" Does an error get thrown, or does the UI just hang?
Is this being done from a domain-joined machine and/or on a machine connected to a corporate network?
We have seen an issue where some configurations of ADFS will not play nicely with Windows Store apps since the Web Authentication Broker (WAB) is based on the IE browser, and ADFS will attempt to do SSO in the special IE way instead of presenting a form,
etc. Unless the WAB is configured to handle this scenario, you will get a non-responsive UI.
Any details you can provide would be helpful.

Cannot login to network accounts from client computer

Hi. I'm setting up my first OS X Server setup for home use...I'm not creating a very complicated setup, but I've been working through the setup one step at a time.
Right now, I'm just running the DNS, File Sharing, and Open Directory services. I setup a couple of Network User accounts, and I wanted to try using one of the accounts to log in to a Mac client (running Mountain Lion) on the network. When the machine first comes up, I get a message that says 'Network Accounts Unavailable,' and if I try to log in, I get the error message saying 'You are unable to log in to the user account "xxxxx" at this time. Logging in to the account failed because an error occurred.'
If I stop and restart the Open Directory service, I get the following messages in the Open Directory Log:
2013-02-15 09:11:01.017801 EST - Unregistered node with name '/LDAPv3/127.0.0.1'
2013-02-15 09:16:19.139744 EST - Registered subnode with name '/LDAPv3/127.0.0.1'
Not sure if this is the source of the problem, but these are the only messages that are coming up if I turn the Open Directory off and then on again.
If anyone has any experience with this, or any suggestions, I'd greatly appreciate it!
Thanks!
If it helps:
Running OS X Mountain Lion (10.8.2) with Server (v2.2.1)
Client Machine is a VMWare Fusion VM Running Mountain Lion (10.8.2)

On your client machine login screen, type in ">console" (without quotes) in the username field and hit enter. Try and login with your network account username and password. What error messages do you get in console?
Taylor

Error message: "Logging into the account failed because an error occurred."

Hello,
We had an XServe G5 2.0 DP 5GB/80/2x250 running Mac OS X 10.3.9 Server with all updates as a main server for a school. The server provides Open Directory Master as well as File-Sharing (AFP and SMB) and e-mail services to about 30 teachers and 300 students. The user home directories reside on the server. A web server also runs on the machine. The students use a pool of laptops, which are configured with a local guest and admin account as well as access to the server-based home directories with Directory Access. The server had the OS running on the 80 GB hard drive and all data (Home directories, mail database, website, etc. were on the two mirrored 250 GB drives.) All was working well until...
A few weeks ago, one of the two 250 GB died. We decided to use the opportunity to upgrade the server and set it up with 3 x 750 GB, two drives running as a mirrored pair to hold OS AND Data, the other as a stand-by unit to help replace a failing drive.
We migrated the OS and all data from the previous drives without a problem. Since now, all data is residing on one pair of drives, we put the data from the old "Data" drive in a folder on the root level of the new HD pair. We wrote a script that launches at startup which creates the symlink in /Volumes/Data to link to /Data. We thought that with this, all would be well.
However: When any user tries to log into his account from any iBook (10.3.9 or 10.4.11) (wirelessly), he gets the message:
"Logging into the account failed because an error occurred. The home folder for the user account is located on an afp or smb server. contact your system administrator for help"
If the user logs in to the guest account on the iBook, then accesses his home directory via file-sharing, he can see (read/write) all his data. So, the data and privileges seem to be OK, as well as Open Directory working correctly. Mail and the web work well also, as does logging in to a user account from one of the PC's (wired).
Can anyone make any suggestions as to how to fix the situation? Currently, the users are using the guest accounts and accessing their data via filesharing, as well as using webmail for their e-mail, but this is a major nuisance.
Any help will be greatly appreciated.
Best regards,
Alain Chammas
A user trying to access his account from a PC (wired) has no problems.

A good number of folks are having problems with this same error message at login, and nobody seems to have found a fix.
I believe I have stumbled upon, if not a solution, at least part of the answer. If you're logged into a 10.4 workstation, open a Finder window and click the "Network" icon. The first time you do this, you'll only see "Library" and "Servers" icons, but if you let it sit for a moment, other folders will magically appear. One of these is "My Network" which is the critical part.
In Workgroup Manager, edit one of your users' home directory configuration. There's a URL piece, usually "afp://server.domain.com/Users" (which is what shows up in the window when you click on the "Home" tab for that user), and then there's a "Home" path that is usually something like "/Network/Servers/servername/Users/username". Trouble is, you've noticed that 10.4 doesn't put servers into the "Servers" path, but rather into the "My Network" path.
So, if you change that "Home" path to read "/Network/My Network/servername/Users/username", it should work--with one caveat. Apparently 10.4 doesn't create the "My Network" path on a given client until you actually browse the network on that client. If you haven't logged into a 10.4 workstation and browsed the network, the "My Network" path won't be there, and you'll still get the error. Login as a local user, browse the network (so that the "My Network" folder shows up), logout, and then login as an Open Directory user, and it should work.
I'm betting that 10.3, 10.4, and 10.5 all handle this issue differently, so if you're in a mixed-version situation, you may have to experiment to find a workable fix.
Derndest thing I ever saw.

Cant login multiple network accounts on the same client?

Setup:
I have created a simple Lion Server on a new i7 Mac Mini. I have configured Open Directory in Master mode and have setup 4 user accounts. I have enabled the File Sharing service and checked the "Make available for home directories" option on the "Users" file share. I have configured each of the 4 user accounts to use this location as the home folder. I have connected my client machines (all OSX Lion) to the Network Account Server.
Problem:
I can log one user into the client machine, but when using "Fast User Switching" and logging on as the second user I get the following error:
"You are unable to log in to the user account "guestaccount" at this time. Loggin to the account failed because an error occured"
In the console if I search for that user account the related error message is:
11-07-31 12:30:54.993 PM authorizationhost: ERROR | -[HomeDirMounter mountNetworkHomeWithURL:attributes:dirPath:username:] | PremountHomeDirectoryWithAuthentication( url=afp://inntaserver01.local/Users, homedir=/Network/Servers/inntaserver01.local/Users/guestaccount, name=guestaccount ) returned 16
Any thoughts as to why the Home Folder "mounter" failed in this scenario?

Historically you have never been allowed to use Fast User Switching to log in multiple network logins on the same client machine. This certainly applied with Tiger, Leopard, and Snow Leopard. I have not yet personally tried this with Lion.
I believe that the underlying reason for this not being allowed is down to how AFP volumes are mounted. The AFP mount becomes 'owned' by the user that triggers the login. With a network login the first user becomes the owner and this means subsequent attempted network logins are denied access to that share and hence cannot access their home directories.
With Tiger, Leopard, and Snow Leopard servers, one could configure network home directories to be shared via NFS instead of AFP. NFS gets treated a lot different in terms of mounting, and is done more at a system level than a user level. While again I have not personally tried Fast User Switching with NFS shared home directories, this approach is specifically recommended by the authors of AquaConnect (a Macintosh Terminal Server solution) in order to allow multiple logins on the same Terminal Server. This seems to be for the same underlying reason. Using NFS does certainly work for use with AquaConnect and also works for the competing iRAPP Terminal Server product as well.
Unfortunately, Lion Server while it can be made to run an NFS server, will not let you configure using NFS for sharing home directories. I have actually reported this as a 'bug' in Lion server.
Neither the authors of AquaConnect or iRAPP have actually tested this scenario with Lion server yet, but AquaConnect do plan to investigate it. It could make it considerably more difficult to use their products.
So in summary, using NFS to share network home directories in theory would avoid the problem and can be done with a Tiger/Leopard/Snow Leopard server, but cannot be done with a Lion server. It is possible however to mix Lion with older server versions. This might for some people be a possible workaround.
PS. A bonus side-effect of using NFS shared home directories was that this allowed badly written software like Adobe's applications which are otherwise notorious for having major issues with network logins and home directories to work without errors. As an example Adobe Acrobat Pro introduced a bug in version 7.0 which prevented it being able to print-to-PDF (one of the major reasons to buy Acrobat Pro). It tooks two years for them to eventually fix this in Acrobat Pro 8.1 (I know because I spent that two years nagging them to fix it and was a beta tester). Unfortunately they then reintroduced the bug in Acrobat Pro 9.0. Fortunately I discovered this side-effect got round the issue although a clunkier workaround was also possible for Snow Leopard clients by redirecting certain folder paths.

Logging in to the account failed because an error occurred

I've been looking after Mac's in an ophthalmologist's office for about 6 years. We initially used Panther server with networked home directories. With the large images, slow computers, and slow network we moved about 4 years ago to local accounts and local home directories using a Leopard Server for file sharing and print serving. About a year ago we moved to a Mac Mini Server but kept local home directories. We would like to move back to networked home directories and implement group folders for sharing.
I have another Mac Mini Server at home and am trying to set up a test environment but am having trouble getting networked home directories to work. I'm trying to log in using my MacBook Pro. Both machines are at 10.6.8. I followed the outstanding setup instructions from
         http://www.wazmac.com/servers_network/fileservers/osxserver_setup/osxserver106_s etup.htm
but omitted the part of setting up the groups.   I just set up an account, Test1 but am unable to log in using it. I can log into the account and access the home folder through my finder though. When I try log in I get:
         You are unable to log in to the user account "test1" at this time
          logging in to the account failed because an error occurred.
I have looked for several days now and have found no answers that have resolved this.
My DNS tests fine and it appears that my password is working. I have turned off all the services except for AFP, DNS, and Open Directory. The home folder is on the second drive /Volumes/MacHD2/Homes/test1 and it is set for automount and home directories. I set each of the separately with a save between. The server appears in my /Network/Servers/ directory right down to the Homes directory.
The following is the only log file that indicates any error. This is from the most recent reboot:
Directory Services Error Log:
2011-07-09 09:19:12 PDT - T[0x00007FFF70C75CC0] - DNSServiceProcessResult returned -65563
2011-07-09 09:19:45 PDT - T[0x0000000101C8D000] - Misconfiguration detected in hash 'Global SID':
2011-07-09 09:19:45 PDT - T[0x0000000101C8D000] - Computer 'guest' (/LDAPv3/127.0.0.1) - ID -1 - UUID 3A0E5953-EC2B-4F6E-A929-3B32406A10C3 - SID S-1-5-21-3687144454-2494095375-1043814123-998
2011-07-09 09:19:45 PDT - T[0x0000000101C8D000] - Computer 'MiniServer.tolan.homeip.net$' (/Local/Default) - ID -1 - UUID 87FB76C0-A528-44FC-ADBF-2A7EC7809A9A - SID S-1-5-21-3687144454-2494095375-1043814123-998
2011-07-09 09:19:45 PDT - T[0x0000000101C8D000] - Misconfiguration detected in hash 'Global SID':
2011-07-09 09:19:45 PDT - T[0x0000000101C8D000] - Computer 'guest' (/LDAPv3/127.0.0.1) - ID -1 - UUID 3A0E5953-EC2B-4F6E-A929-3B32406A10C3 - SID S-1-5-21-3687144454-2494095375-1043814123-998
2011-07-09 09:19:45 PDT - T[0x0000000101C8D000] - Computer 'MiniServer.tolan.homeip.net$' (/Local/Default) - ID -1 - UUID 87FB76C0-A528-44FC-ADBF-2A7EC7809A9A - SID S-1-5-21-3687144454-2494095375-1043814123-998
The following are the relevant messages from the other log files that captured the login attempt:
AFP Access Log:
IP 192.168.77.20 - - [09/Jul/2011:11:25:11 -0800] "Login test1" 0 0 0
IP 192.168.77.20 - - [09/Jul/2011:11:25:11 -0800] "Logout test1" 0 0 0
DNS Log:
09-Jul-2011 09:38:09.777 received control channel command 'freeze'
09-Jul-2011 09:38:09.778 freezing all zones: success
09-Jul-2011 09:38:09.885 received control channel command 'reload'
09-Jul-2011 09:38:09.885 loading configuration from '/private/etc/named.conf'
09-Jul-2011 09:38:09.886 using default UDP/IPv4 port range: [49152, 65535]
09-Jul-2011 09:38:09.886 using default UDP/IPv6 port range: [49152, 65535]
09-Jul-2011 09:38:09.888 reloading configuration succeeded
09-Jul-2011 09:38:09.888 reloading zones succeeded
09-Jul-2011 09:38:09.889 zone 77.168.192.in-addr.arpa/IN/com.apple.ServerAdmin.DNS.public: loaded serial 2011070804
09-Jul-2011 09:38:09.889 zone tolan.homeip.net/IN/com.apple.ServerAdmin.DNS.public: loaded serial 2011070900
09-Jul-2011 09:38:09.893 received control channel command 'thaw'
09-Jul-2011 09:38:09.893 thawing all zones: success
09-Jul-2011 09:38:09.893 zone 77.168.192.in-addr.arpa/IN/com.apple.ServerAdmin.DNS.public: loaded serial 2011070804
09-Jul-2011 09:38:09.893 zone tolan.homeip.net/IN/com.apple.ServerAdmin.DNS.public: loaded serial 2011070900
Kerberos Server Log:
Jul 09 11:25:07 MiniServer.tolan.homeip.net krb5kdc[55](info): AS_REQ (7 etypes {18 17 16 23 1 3 2}) 192.168.77.20: NEEDED_PREAUTH: [email protected] for krbtgt/[email protected], Additional pre-authentication required
Jul 09 11:25:07 MiniServer.tolan.homeip.net krb5kdc[55](info): AS_REQ (7 etypes {18 17 16 23 1 3 2}) 192.168.77.20: NEEDED_PREAUTH: [email protected] for krbtgt/[email protected], Additional pre-authentication required
Jul 09 11:25:07 MiniServer.tolan.homeip.net krb5kdc[55](debug): handling authdata
Jul 09 11:25:07 MiniServer.tolan.homeip.net krb5kdc[55](debug): handling authdata
Jul 09 11:25:07 MiniServer.tolan.homeip.net krb5kdc[55](debug): .. .. ok
Jul 09 11:25:07 MiniServer.tolan.homeip.net krb5kdc[55](debug): .. .. ok
Jul 09 11:25:07 MiniServer.tolan.homeip.net krb5kdc[55](info): AS_REQ (7 etypes {18 17 16 23 1 3 2}) 192.168.77.20: ISSUE: authtime 1310235907, etypes {rep=18 tkt=16 ses=18}, [email protected] for krbtgt/[email protected]
Jul 09 11:25:07 MiniServer.tolan.homeip.net krb5kdc[55](info): AS_REQ (7 etypes {18 17 16 23 1 3 2}) 192.168.77.20: ISSUE: authtime 1310235907, etypes {rep=18 tkt=16 ses=18}, [email protected] for krbtgt/[email protected]
Jul 09 11:25:11 MiniServer.tolan.homeip.net krb5kdc[55](info): TGS_REQ (7 etypes {18 17 16 23 1 3 2}) 192.168.77.20: ISSUE: authtime 1310235907, etypes {rep=18 tkt=16 ses=18}, [email protected] for afpserver/[email protected]
Jul 09 11:25:11 MiniServer.tolan.homeip.net krb5kdc[55](info): TGS_REQ (7 etypes {18 17 16 23 1 3 2}) 192.168.77.20: ISSUE: authtime 1310235907, etypes {rep=18 tkt=16 ses=18}, [email protected] for afpserver/[email protected]
Password Service Server Log:
Jul 9 2011 11:25:07    RSAVALIDATE: success.
Jul 9 2011 11:25:07    AUTH2: {0x4e17e4b75f13dc1d0000000600000006, test1} DHX authentication succeeded.
Jul 9 2011 11:25:07    KERBEROS-LOGIN-CHECK: user {0x4e17e4b75f13dc1d0000000600000006, test1} is in good standing.
Jul 9 2011 11:25:07    KERBEROS-LOGIN-CHECK: user {0x4e17e4b75f13dc1d0000000600000006, test1} authentication succeeded.
Jul 9 2011 11:25:07    GETPOLICY: user {0x4e17e4b75f13dc1d0000000600000006, test1}.
Jul 9 2011 11:25:07    GETPOLICY: user {0x4e17e4b75f13dc1d0000000600000006, test1}.
I would appreciate any and all assistance with this. I've never had a problem in the past with configuring and using networked home directories. This has me stumped. This is now my 3rd day working on it. I've been through numerous discussion groups, googled endlessly, and even re-installed the server software twice to make sure I'm working with a clean current copy.
Thanks in advance for any advice you can offer....

Thanks for your comments, and particularly for confirming that the Kerberos and AFP logs indicated success.   I did have my sharing set properly as you describe however checking that I had set sharing appropriately it led me to the answer to my problem...
You were right about the location of Test1's home directory and it is on the second disk.   I have always had a level of discomfort setting up the Home URL under 'Home' when setting up a home directory. I thought I had to put the fully qualified directory name, in this case:
      afp://miniserver.tolan.homeip.net/Volumes/MacHD2/Homes
After turning sharing off and on for the Homes directory, just to ensure, I saw that WGM had inserted another, more abbreviated URL for me to select:
      afp://MiniServer.tolan.homeip.net/Homes
When I selected this URL all started working.   I guess I've been outsmarting myself over the years by overthinking what I had to do.
So, while your suggestion was correct, that wasn't my problem, but checking to ensure that I'd done it right did lead me to the solution.   Hence, a helpful answer, rather than a correct one even though you are correct.
This issue of what the URL should look like has always bothered me but now I know. I guess I've just been lucky up until now and in this business good luck doesn't teach you anything...   :-)
Cheers, and thanks for this...

Since updating my macbook air with OS X mavericks i can't send emails smtp account failed my email host is 123reg

since updating my macbook air with OS X mavericks i can't send emails smtp account failed my email host is 123reg any ideas how to sort it out?

I am having the same issue with Media Temple Email.
My problem in more detail is:
Adding my Media Temple Hosted domain email to a desktop service on my Macbook Air.
I have tried this on both Mac Mail and Thunderbird.
I add the account manually and have checked, double checked, triple checked the server addresss and also the user name and password and they are correct.
I have altered the ports from being default to custom and have tried both SSL and non SSL and still it is unable to connect to the SMTP server.
IMAP inbox is working as I recieve mails but can not send them.
I have chatted to Media Temple and they say it must be something to do with the hardware of the MacBook Air which to start with I disagreed with but I have since tried adding the email to my Mac Mini and it works fine.
I am assuming their is an issue in the MacBook Air with the SMTP ports and I would really appreciate some advice on how to fix this as I don't want to use Webmail for ever.
Thanks in Advance

Login to my account fails - no desktop

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