Golden triangle authentication problem

Hi,
Im trying to set up the golden triangle on our AD/Mac network. I have bound to AD fine and now Im trying to set up an OD Master. After clicking "Kerberize Services" I click on "Remain connected and set up an Open Directory Master". Upon doing this I get
Single Sign-On Unavailable
Single Sign-ON (Kerberos v5) will not be enabled for your new Open Directory master because your networks DNS server does not provide forward and reverse mappings for your servers domain name, or because Single Sign-On is already configured on your server.
To resolve this issue, close the assistant and correct your DNS or Single Sign-On configuration.
My forward and reverse digs look fine and my "changeip -checkhostname" returns the correct results.
Any ideas as why this happens?

Hello Gareth, and welcome to the Apple Boards,
Please bear with me as I point out a couple of things:
1) You should post a new topic for your issue rather than hijack someone else's thread - it's just good form.
2) The reason this question probably didn't draw any responses is that it is not Xserve specific and there are much better groups that are specifically about Directory Services where you will get more and better eyes on your issue.
Please check out the OS X Server specific boards: http://discussions.apple.com/category.jspa?categoryID=96
That being said - if you have a fresh Server in Standalone mode, bind it to AD before doing anything else and then promote it to OD Master it should just do the right thing. In 10.4 you had to just through hoops and drop to the command line but from 10.5 on OD should draw its information for set-up from AD if it is bound before it's promoted to Master. I haven't done it a bunch of times but I have done it a few and - if and only if your forward and reverse DNS is solid and working - this actually does work as advertised. If your box is already a Master you can demote it (THIS DESTROYS YOUR CURRENT LDAP - BACK IT UP) and then bind and promote. If you've run kerb on the box previously you might want to blow away your old keytabs just to be safe but it should still just work. And always, always, always double check that your DNS is rock solid in forward and reverse or it will not work.
The best documentation for this process is a paper by Bombich (no surprise) and there's a little known paper at AFP548 called +OD AD Sandbox+ that is really worth a read, but read the entire thing before trying anything.
=Tod

Similar Messages

Mac Pro 10.6.8 following golden triangle setup users cannot see their home dirs after login

I have Mac Pro running 10.6.8 and has been running well in a golden triangle for 3 years. Ldap database corrupt so I deleted OD master and reconfigured.
Augmented users from AD and they log on no problems except the home directory is unavailable after login.
Has anyone got ant clues… I'm sure its something stupid I've overlooked.

I have Mac Pro running 10.6.8 and has been running well in a golden triangle for 3 years. Ldap database corrupt so I deleted OD master and reconfigured.
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Has anyone got ant clues… I'm sure its something stupid I've overlooked.

SQLNET authentication problem!

Hi,
We have a setup in which the database server is running on a 'XXX' domain and all the clients are running in domain 'YYY'.
On the client, if following is the setup, then the clients face ORA-03113 after around 45 to 90 minutes of idle time.
SQLNET.ORA
NAMES.DEFAULT_DOMAIN=YYY
TNSNames.ORA
DBName.YYY = (..........
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I have gone thorugh the Action suggested for this oracle error.
If problematic machine is shifted to the domain XXX, error is gone,Do you shift physically to some other network?? if yes then there might be a problem with your network. The machines which are disconnected, might be on the same network channel or switch which is creating some problem in your network. this is only luck that your failure occur when there is no activity from that client which is disconnected.
Shift the places of problem facing client and non-problem facing client with each other and then check. It will clear the mind about the netrowk problem
Regards

Taking long time to log in after 10.6.8 update (Golden Triangle)

Hi,
Our school has the "golden triangle" set up.
After updating our macs to 10.6.8, the time taking to log in as Network Account is taking much longer. It took more than 30 seconds to log in successfully after I got the Network Account Available green dot. I tried a machine with 10.6.4 or 10.6.7, neither of them need to take that longer.
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Try booting in Safe Mode. Mac OS X: Starting up in Safe Mode
It can take a little longer to boot in Safe Mode then a normal boot. Once you are in Safe Mode, go to the Apple menu (top left in your screen) then click: Restart.
I just updated to 10.6.8 tonight, and went on the App Store to see if any more news about Lion.
Lion is not available until July. Apple - OS X Lion - Get Lion in July. Only from the Mac App Store.
And.... launch iTunes. From the menu bar click Store / View My Account / Edit Payment Information. Make sure the Security code and expiration date for your credit / debit card is available and correct then click Done. This is necessary even for updating software

Webservice authentication problem

Web Service Authentication problem
Posted: Jun 17, 2005 3:32 PM Reply E-mail this post
Hi
I have created a portal service and exposed this service as a webservice. I am consuming this webservice in webdynpro. Portal service contains 2 simple methods putdata() and getdatat().
When i access the webservice i am getting the following error.
"javax.xml.rpc.soap.SOAPFaultException: The User Authentification is not correct to access to the Portal Service com.sap.portal.prt.soap.GlobalData or the service was not found"
My Enterprise portal server is configured for SSO to back end R/3 system. I have checked for portal service availability and it is fine.
My Webdynpro and Portal are running on different machines. EP is running on AIX with SP11.
Any help please.
Regards
NagaKishore V

Hi Shahab,
Can you reproduce the issue if you create 2 applications. One that exposes a secured web service and the other one the one, consumes the web service? This would help to isolate the issue and move forward in case is a bug.
Thanks,
Juan Camilo

Authentication problem - solved, but maybe a bug in Mac OS X?

Hi,
I've a rather small installation with only a handful of users configured on a Mac mini (Mac OS X Server, 10.6.8). All of them use the mail, calendar and addressbook server on the Mac, nothing more. They use it with Mac, iPhone and iPad. Everything worked fine for months but suddenly all of them were faced authentication problems: it was not possible to login on the imap server, the calendar server, the addressbook server. It was possible to login using the admin account on the server directly. Moreover, all users disappeared from the workgroup manager, however they still were available on the servers LDAP server and findable using ldapsearch.
First, I used to completely restart the server to solve the problem, but it reappeared after only few hours again.
Second, after understanding more about the authentication process, I found the "killall DirectoryService" was sufficient to solve the problem, but it still reappeared after few hours.
Then I found the, once the problem occured, there was nearly no more communication to the local LDAP server on port 389 on localhost. When everything was working fine, the was a lot of such communication, including queries for usernames, when a login attempt was made. I started a "tcpdump -n -i lo0 port 389" and waited for the problem again. After the problem occured, I found in the pcap files that there were a few final query attempts, actually attempts the open a port 389 TCP connection to the slapd running on localhost, which were answered with a TCP RST. Then, no more attempts were made until l restarted the DirectoryService. Using the logfile of the slapd I found that this happened exactly at the time the slapd was stopped and restarted. And - surprisingly for me - stopping and restarting the slapd happened exactly once an hour.
I then found that it happened exactly at the time the time machine backup process was started and indeed it was possible to trigger the event of restarting the slapd by manually starting a time machine backup.
(Indeed, I switched my backup strategy from SuperDuper to time machine the other day and maybe that was the time the problem occured for the first time. I know that time machine is not considered as the best backup strategy for a server but I wanted to try on my own.)
Google helped my to find a hint that time machine will actually stop and restart slapd - which is a generally a good idea, since otherwise a backup from some open database files would be made, which could work but may fail. So, I thing, someone of the developers thought about that problem too and has considered time machine for backups of a server.
However, a not running slapd can not answer queries from a DirectoryService and a stopping or starting process might indeed end up with TCP SYNs answered with TCP RST.
My solution was to disable time machine again and from that time the problem does not occur again.
I'm wondering why the DirectoryService process isn't starting to query the slapd again after a failed connection. Isn't this a bug? After this experience I consider time machine as not only the not preferred backup solution for a server but as completely incompatible with Mac OS X server - although, as I said, it seems that someone thought about backing up the LDAP database using time machine.
(On a Lion server this problem does not occur, the slapd will not be stopped and restarted when time machine is running. Moreover, I saw a com.apple.slapd.start notification in the slapd.log ... maybe this tells DirectoryService to try again.)
Cheers,
Wolfgang

Another problem I found with the MacOS X key bindings: the 6 key doesn't work!
In the config that ships with SQL Developer, I found this:
<Item class="oracle.javatools.util.Pair">
<first class="java.lang.String">DOCUMENT_6_CMD_ID</first>
<second class="oracle.ide.keyboard.KeyStrokes">
<data>
<Item class="javax.swing.KeyStroke">6</Item>
</data>
</second>
</Item>
which should be:
<Item class="oracle.javatools.util.Pair">
<first class="java.lang.String">DOCUMENT_6_CMD_ID</first>
<second class="oracle.ide.keyboard.KeyStrokes">
<data>
<Item class="javax.swing.KeyStroke">meta 6</Item>
</data>
</second>
</Item>

Wifi Authentication Problem in Lenovo K900

Hi,
I am able to connect to wifi at home network. And when I try it at office it is showing Authentication problem and "Not in Range". The password and everything is correct. All my colleagues are able to connect with the same password. I searched online for the solution and there are many other lenovo tab and phone users facing the same problem and I am unable to find the solution. Can anyone resolve this issue and give appropriate answer for this.

This is the first time I'm hearing this issue, I'm also an K900 user but this never happmed to me or my other friends.
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Facebook Profile I'm a carefree type of guy but always there to help, so if you have anything to ask don't hesitate.

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We are using cisco ACS 4.2.1 on windows 2003 to authenticate with windows 2003 Actice Directory. We have update Active directory server windows 2008 version. We have checked the configuration of ACS on windows database and no problem but we can't see in ACS dynamic user. I have authentication problem ACS 4.2.1 to Windows 2008 R2 active directory.

Hi there,
There is a section in the ACS 4.x where you can define if the ACS should show the dynamic users or not, make sure that this option is unchecked, for this go to External User Databases/Unknown User Policy/Configure Caching Unknown Users
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WLC 5508 WPA Authentication Problems

Hello,
We have a WLC 5508 with 7.4.100.0 Firmware.
We are using 1141 and 1142 APs and we are having authentication problems with clients that are connecting to our WLAN with WPA+AES autentication. The clients receive in her laptop a password error, and we receive the following log in wlc:
Client Excluded: MACAddress:f8:f1:eb:dd:ff:cd Base Radio MAC :08:ad:dd:76:4d:30 Slot: 0 User Name: unknown Ip Address: unknown Reason:802.1x Authentication failed 3 times. ReasonCode: 4
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Anyone had this problem previusly?
Thanks in advance.

I made the configuration using the Cisco Recommended settings, the strange thing its that the users connect normally, until they starts with authentication problems. I restart the access points and the problem its solved.
Cisco Recommended and not recommended Authentication Settings
Security encryption settings need to be identical for WPA and WPA2 for TKIP and AES as shown in this image:
These images provide examples of incompatible settings for TKIP and AES:
Note: Be aware that security settings permit unsupported features.
These images provide examples of compatible settings:

WiFi Authentication problem

I have an iMac, and iPad, a Blackberry (forgive me) and Airport for my WiFi all of my pieces are working fine with my WiFi. I had guests over the other day and we could not allow my guests iPads or iPhone to sign onto my network. I bought my dad a generic tablet to use for solving cross words, etc., and I cannot sign into my own network. No opportunity exists to put in a password because it just reads "Authentication Problem".
No opportunity exists, therefore, to enter the password. Signal strength is excellent, Securty is WPA2 PSK, I touch connect and it says Saved Secured with WPA2 and then goes back to "Authentication Problem."
I've unplugged (and plugged back in) both the Airport / router and Internet Service provider's modem. I've rebooted my iMac and the new generic pad 3 times each.
I had 2 networks one for me and one for guests, can't get into either, identical problem. I can see all of the neighbour's networks and they're all locked and say secured with (various WPA/WPA2, etc., just mine says Authentication Problem. I plugged the tablet into my iMac and it's functioning well.
I now deleted the guest network and can't open a new network.
I've triple checked my passwords, hand written and in the Key Chain.
I've checked my Apple ID (I'm able to get into this forum).
Both my iPad (purchased May 2013) and BlackBerry (received free July 2013) signed in without any problems.
I cannot see why I can't get into my network ~ any ideas?

Hello,
Hmmm..."problem"...pretty hard to understand. Can you provide more details? What exactly do you try? What exactly happens at each step of what you try? What is the exact and complete content of any error messages presented?
Please remember that we can't see you nor your device. We have only your words to help us understand your situation, and such understanding is the natural prerequisite to providing you with any useful guidance.
Thanks and let us know.
Occam's Razor nearly always applies when troubleshooting technology issues!
If anyone has been helpful to you, please show your appreciation by clicking the button inside of their post. Please click here and read, along with the threads to which it links, for helpful information to guide you as you proceed. I always recommend that you treat your BlackBerry like any other computing device, including using a regular backup schedule...click here for an article with instructions.
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Email authentication problem on only some of Verizon's servers

I use Eudora 6.2.4 on an iMac Core 2 Duo 2.0 20" (Al) Macintosh running OX 10.5.5. Like many others (see one thread each under FiOS Internet and High Speed Internet and Dialup), since about mid-November, I have been receiving intermittent (about 10% of the time) authentication errors when Eudora checks for new mail. I have 3 VZ e-mail accounts and one at my employer; the errors occur only on the VZ accounts.
I've used the freeware app Eavesdrop (http://code.google.com/p/eavesdrop/) to observe the TCP conversations between Eudora and the server. The VZ server offers SASL CRAM-MD5 PLAIN, and Eudora uses CRAM-MD5. I see the challenge from the server, Eudora's response, and the server's authentication-failure response. Since the response is hashed, I have no way of telling if Eudora is sending the correct response, but it works most of the time. (After it fails, Eudora then assumes its stored password is NG, discards it, and prompts me for it on the next mail-check, which is just a bit annoying.)
Here is an example of a successful mail-check:
+OK Messaging Multiplexor (Sun Java(tm) System Messaging Server 6.2-6.01 (built Apr 3 2006)) <[email protected]>
CAPA
+OK list follows
TOP
PIPELINING
UIDL
RESP-CODES
AUTH-RESP-CODE
USER
SASL PLAIN CRAM-MD5
IMPLEMENTATION MMP-6.2p6.01 Apr 3 2006
auth CRAM-MD5
+ PDQ5MzU1ZWY3LmRlZWZlMEB2bXMxMDkubWFpbHNydmNzLm5ldD4=
amp3b2xmOSA3MDA0MmE5YWQwYzEzOWRkYjE5NDk0OWZjYjY1NzBmMg==
+OK Maildrop ready
STAT
+OK 0 0
QUIT
And here's a failure:
+OK Messaging Multiplexor (Sun Java(tm) System Messaging Server 6.3-7.04 (built Sep 26 2008)) <[email protected]>
CAPA
+OK list follows
TOP
PIPELINING
UIDL
RESP-CODES
AUTH-RESP-CODE
USER
SASL CRAM-MD5 PLAIN
IMPLEMENTATION MMP-6.3p7.04 Sep 26 2008
auth CRAM-MD5
+ PGZjMDAxY2M0ZjZlNDAyNjM3ZTI1MTVmMGU1MWEyYzVjQHZtczE3MTAxMy5tYWlsc3J2Y3MubmV0Pg==
amp3b2xmOSA1NWNmNzJhYzRhZDdlMmE1ZGExZmIwZDVkMzA3NTc5OQ==
-ERR [AUTH] Authentication failed
You'll notice that the VZ server identifies itself at the onset of each conversation, including a build ID and date, followed by a timestamp and a server ID (e.g., vms109.mailsrvcs.net). I'm in eastern Massachusetts, and when my client connects to incoming.verizon.net, one of a pool of V servers responds. I've observed about 15 different servers, of which two (vms171011 and vms171013) show "6.3-7.04 (built Sep 26 2008)" and all the others show "6.2-6.01 (built Apr 3 2006)". Furthermore, I observe that vms171011 and vms171013 consistently give this authentication failure for CRAM-MD5, but all the others (with the older build) consistently succeed in authenticating my accounts.
I called FiOS Support, and the CSR took down took down some relevant info, said she'd pass it on the the e-mail folks. Within 2 hours I got a call from a Verizon tech. He said they "knew" about it and that it was a Mac problem. It wasn't specific to VZ, and it occurred only on Macs.   He had no explanation for my observation that mail-check authentication works with 13 of VZ's servers and consistently fails with two which have a later build version/date, but he believed it was consistent with it being an Apple problem. So naturally he was off the hook.
He referred me to an Apple Support Forum discussion to back up his position. I hadn't seen (or thought of looking in) the Apple forums, so I had a look and found a total of 5 threads under "Mail and Address Book". Of course, these deal with Mail.app, . Comcast as well as VZ. This is the lengthiest of them:
http://discussions.apple.com/message.jspa?messageID=8478765#8478765
These Apple discussion threads and the two Verizon Forum threads all mention Macintoshes, which lends credence to the tech's assertion that it's a Mac problem, not Verizon's. I've found one that seems to depict the same thing on a PC (http://groups.google.com/group/comp.mail.eudora.ms-windows/browse_thread/thread/b426c0ca59841ca9), but it's not conclusive.
I don't know what PeeCee users use for a mail client or what method they use for authentication (the POP3 protocol, as amended,has several possibilities). My Eudora app has settings for "Password", "Kerberos", and "APOP", but VZ doesn't offer Kerberos, and Eudora seems to ignore the APOP setting, so it uses only the CRAM-MD5 method, so I'm stuck. I can't disprove that this is a Mac-only problem, but I can't understand why the CRAM-MD5 authentication always works with 13 of VZ's servers and always fails with 2 others (which happen to have a different build version/date).
Solved!
Go to Solution.

With the help of a Windows-using friend, I have additional evidence that the mail-check authentication problem is NOT Mac-specific, but also can be shown to occur with a POP3 client (the final version, Eudora 7.1.0.9) using a secure authentication method (APOP) on Windows (XP Home, SP 3). He had been observing no authentication problems, but investigation showed that his authentication setting was for "Password", which uses the basic (and very insecure) USER/PASS messages. His Eudora does not allow CRAM-MD5, but it does have APOP authentication, which is another secure method that also uses the MD5 algorithm to encrypt the password.
When he changed the setting to use APOP authentication, he observed the same behavior that I've reported above:
   - with most of the VZ servers (e.g., vms095.mailsrvcs.net, vms104.mailsrvcs.net) that show "6.2-6.01 (built Apr 3 2006)", the authentication succeeds
   - with vms171011.mailsrvcs.net and vms171013.mailsrvcs.net, which show "6.3-7.04 (built Sep 26 2008)", the authentication fails.
See examples below.
Here's a successful mail-check (these excerpts are from the Eudora log; I've edited his username):
3244    64:13.20 Rcvd: "+OK Messaging Multiplexor (Sun Java(tm) System Messaging Server 6.2-6.01 (built Apr 3 2006)) <[email protected]> [ISafe POP3 Proxy] \r\n"
3244    32:13.20 Sent: "CAPA\r\n"
3244    64:13.20 Rcvd: "+OK list follows\r\n"
3244    64:13.20 Rcvd: "TOP\r\n"
3244    64:13.20 Rcvd: "PIPELINING\r\n"
3244    64:13.20 Rcvd: "UIDL\r\n"
3244    64:13.20 Rcvd: "RESP-CODES\r\n"
3244    64:13.20 Rcvd: "AUTH-RESP-CODE\r\n"
3244    64:13.20 Rcvd: "USER\r\n"
3244    64:13.20 Rcvd: "SASL PLAIN CRAM-MD5\r\n"
3244    64:13.20 Rcvd: "IMPLEMENTATION MMP-6.2p6.01 Apr 3 2006\r\n"
3244    64:13.20 Rcvd: ".\r\n"
3244    32:13.20 Sent: "APOP XXXXX 8a45b60f3f4a52a472937e86edbfda70\r\n"
3244    64:13.21 Rcvd: "+OK Maildrop ready\r\n"
3244    32:13.21 Sent: "STAT\r\n"
3244    64:13.21 Rcvd: "+OK 0 0\r\n"
3244    32:13.21 Sent: "QUIT\r\n"
3244    64:13.21 Rcvd: "+OK\r\n"
And here's one that fails; note the different server build-date:
460     64:13.23 Rcvd: "+OK Messaging Multiplexor (Sun Java(tm) System Messaging Server 6.3-7.04 (built Sep 26 2008)) <[email protected]> [ISafe POP3 Proxy] \r\n"
460     32:13.23 Sent: "CAPA\r\n"
460     64:13.23 Rcvd: "+OK list follows\r\n"
460     64:13.23 Rcvd: "TOP\r\n"
460     64:13.23 Rcvd: "PIPELINING\r\n"
460     64:13.23 Rcvd: "UIDL\r\n"
460     64:13.23 Rcvd: "RESP-CODES\r\n"
460     64:13.23 Rcvd: "AUTH-RESP-CODE\r\n"
460     64:13.23 Rcvd: "USER\r\n"
460     64:13.23 Rcvd: "SASL CRAM-MD5 PLAIN\r\n"
460     64:13.23 Rcvd: "IMPLEMENTATION MMP-6.3p7.04 Sep 26 2008\r\n"
460     64:13.23 Rcvd: ".\r\n"
460     32:13.23 Sent: "APOP XXXXX ab2dde7d89cbbf0bf9cd409dce02e5a8\r\n"
460     64:13.27 Rcvd: "-ERR [AUTH] Authentication failed\r\n"
IMHO all this evidence validates my original hypothesis, that two (or more) of VZ's mail servers, which have server builds "6.3-7.04 (built Sep 26 2008)", advertise secure CRAM-MD5 and APOP authentication capabilities, but consistently fail such authentication attempts. All the other servers with builds "6.2-6.01 (built Apr 3 2006)" handle these authentications correctly. This has been shown to be the case on both Mac and Windows POP3 email clients. Email clients that use the simpler and unsecure USER/PASS and AUTH PLAIN methods apparently see no authentication errors on any of the VZ servers. This strongly points to this being a Verizon problem specific to two of the servers that we see here in eastern Massachusetts. Others have also observed the same server-specificity; see for example http://eudorabb.qualcomm.com/showthread.php?t=13802 . This problem has been reported since about mid-November.
Verizon, the ball is in your court. Find the problem and fix it!

Phone won't connect to wifi saying authentication problem

My phone after being connected to sky wifi from sept 2013, has all of a sudden started hardly connecting, and always says 'authentication problem'. I have my iPad connected to the wifi too, but this has also been connecting fine since sept 2013.The connection to my phone drops a lot, and then when it is connected it is very, very slow. It doesn't drop at all on my iPad. Please can someone help me. And put it in layman terms please, thank you. EM

Two things to try. Change the wifi channel on the Sky router/Hub itself, instruction on a post at the top of this forum. And try forgetting the network on the iPhone; Settings->WiFi, and select the network ticked. Select Forget This Network and confirm it. Then reconnect to the Sky router/Hub by selecting the wifi network and entering the password again on the iPhone. Try the latter first, then change the wifi channel on the Sky Hub/router after this step. If you don't have an iPhone, then use the steps appropriate for that phone to basically do the same as above, for forgetting and reconnecting the phone to the wifi network.

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OK, I've been having the Screensharing authentication problem that crops up regularly on this forum. Accidentally I found a very weird solution. I want to know what's going on and to let others know of the solution.
Let's say my laptop account is called 'london' and I want to connect it to my tower account called 'paris' on the LAN. I browsed the network for the tower, click 'connect as' and in the dialog box I put in "Name: paris" and "Password: xxx". I click 'connect' and I am connected as the registered user 'paris' and I can browse all of the disks. File sharing is thus working normally.
Now I click the 'share screen...' button and I get another dialog box into which I once more type "Name: paris" and "Password: xxx". This yields an authentication failure message, which many users will be familiar with.
By accident instead of typing the name and password for the account on the distant machine, I typed into the dialog box the name and password of the local machine: ie. "Name: london" and "Password: yyy". Much to my amazement the screensharing works. What is going on?

No, the username on london is london and on the machine paris it is paris. However, the passwords are different.
Just to be clear, I first connect to the remote machine's file sharing using the remote machine's username and password (ie. in the normal fashion). I then connect screensharing but give the local machine's username and password in the dialog box.
Before I made this discovery I had created a couple of fresh accounts on the remote machine. One was glitched, while the other functioned properly (ie. screensharing required the remote machine's username and password). The bizarre fix worked for my original account. I have not tested it on the new accounts for fear of screwing things up again.

How do I correct LG Lucid wifi authentication problem

LG Lucid was working fine until few days ago when it stopped connecting to all available wifi networks. It still ID's them, goes thru authentication process, & then provides error message "authentication problem". I think there was aa phone update about the same time things stopped working. Help please.

I know this is an old thread, and would hope you've gotten connected to your WiFi by now, but you may want to check your router settings. If you have some sort of device filtering set up, your for may not be recognizing your phone since the update.

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You have been looking everywhere, except this forum. This issue was already addressed in this thread: https://forums.lenovo.com/t5/Android-Yoga-Series-Tablets/Wifi-Won-t-Connect-quot-Authentification-Problem-quot-Yoga/td-p/2105009 Are you using a WEP key encryption? If yes, try switching to WPA/WPA2. Though i have been able to connect without problem with these settings: Have you performed a factory reset after switching from 4.4.2 to 5.0? You could try that, sometimes it fixes so e issues.

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