Unknown user in Terminal???

Using Snow Leopard 10.6.7 on a Mac Pro 2009. Whenever I open Terminal, the login is as follows:
Last login: Sun Jun 5 15:27:51 on ttys000
unknown002500f22f99:~ backupuser$
What is this unknown??? Has anyone seen this before? This has not happened before, but suddenly now this is happening.
Robert

Yes. The default $PS1 (prompt) settting is '\h:\W \u\$ ' where \h represents your hostname. To see how the hostname can be affected see the this post and the items that follow it.

Similar Messages

How do I remove (unknown) user in permissions & sharing, please?

I re-installed OS X with archive install. I am reinstalling preferences, etc... using Time Machine and my archived Previous System folder. However, many folders are marked and I have an (unknown) user with Read&Write Priveleges in Sharing & Permissions for files within 'Previous System' folders. I am unable to remove (unknown) with - and I have no option for setting 'No Access' to this user.
How do I remove (unknown) user with Read&Write Priveleges in Permissions?
Using Terminal, I have ascertained that my uid=501
Macintosh:~ symone$ ls -ladeO /Previous\ Systems.localized/Previous\ System\ 1/Users/symone/Library/Audio
drwx------+ 5 502 staff - 170 8 Sep 2011 /Previous Systems.localized/Previous System 1/Users/symone/Library/Audio
0: group:everyone deny delete
Macintosh:~ symone$ id
uid=501(symone) gid=501(symone) groups=501(symone),98(_lpadmin),81(_appserveradm),79(_appserverusr),80(admin)

Hmmm, doesn't sound good for your drive.
Check the S.M.A.R.T. status of the drive in Disk Utilty by highlighting the Drive & looking at the bottom of the window.
Could be many things, we should start with this...
"Try Disk Utility
1. Insert the Mac OS X Install disc, then restart the computer while holding the C key.
2. When your computer finishes starting up from the disc, choose Disk Utility from the Installer menu at top of the screen. (In Mac OS X 10.4 or later, you must select your language first.)
*Important: Do not click Continue in the first screen of the Installer. If you do, you must restart from the disc again to access Disk Utility.*
3. Click the First Aid tab.
4. Select your Mac OS X volume.
5. Click Repair Disk, (not Repair Permissions). Disk Utility checks and repairs the disk."
http://docs.info.apple.com/article.html?artnum=106214
Then try a Safe Boot, (holding Shift key down at bootup), run Disk Utility in Applications>Utilities, then highlight your drive, click on Repair Permissions, reboot when it completes.
(Safe boot may stay on the gray radian for a long time, let it go, it's trying to repair the Hard Drive.)
If perchance you can't find your install Disc, at least try it from the Safe Boot part onward.

Unknown user

Hi everybody
after upgrade my os x to 10.5 I had problem with the "unknown" user. I had resolve my problem temporary with this article http://docs.info.apple.com/article.html?artnum=307128.
When I had resolve the problem I had remove the group from all my hd and than with the command "dscl . delete" I had removed the groups and users. At now if I do the command: dscl . list on terminal I don't have any more the group and user unknown.
But on my external hd(on macintosh hd I don't have this problem) when I create a new file or directory the user unknown come back!
I have the same problem if I attach any hd on my computer and make an partition with Mac OS file system.
there is other that I can do for delete the unknown user definitly?
there is another question: why when I create a group on terminal with that command: sudo dscl . create /Groups/"group_name" why can't I find under user and groups?
many thanks

Hi-
You would be much better off to place your post in the Leopard Forum.
This is a forum specifically for "Feedback about Discussions"- questions or comments regarding the entire Apple Discussions forum (or part of) only.

Unknown User Permissions - Erase and Install Backup Plan

Hi everyone,
I upgraded from Tiger and therefore have the unknown user permissions problems. I'd like to erase and install my system and am writing to verify the following:
If I copy my data (with the funny permissions) to a Powerbook in Firewire Disk Mode, reinstall Leopard on my new iMac, then copy the data back from the Powerbook in disk target mode, will the permissions be fixed?
Thank you, Tom Bertram.

Thomas,
If you are talking about the "unknown" group problem seen in the permissions portion of Get Info, be aware that Apple is in the process of putting out a Knowledge Base article to address this and it may be wise to be patient a little longer.
The user accounts inherited from Tiger belong to a "group" that has a missing piece of information -- a group name that Leopard wants. The installer should have dealt with this but it didn't. Anyway, a couple of simple Terminal commands can fix this for each such account. Once the Group description is proper, there will no longer be any need to change the group membership of your files.
Unfortunately the first couple tries Apple made of describing how to do this appear to be in error. See the following thread:
http://discussions.apple.com/thread.jspa?threadID=1280472&tstart=0
The correct commands should be posted by Apple shortly and then you can resolve this without having to do a whole re-install.
--Bob

AD SSO "unknown user" error

Hi all,
I've been having trouble with AD SSO on NAC deployed in L2 OOB VG mode.
Users are getting a message that says:
Unknown user
Please contact your administrator if the problem persists.
I check the event logs in the NAC Manager and it says "Unknown user via ADSSO, [MAC_ADDRESS ## IP_ADDRESS] user@DOMAIN"
The AS SSO service is shown as "started" for the NAC Server however, running the command "netstat -a | grep 8910" at the terminal returns nothing.
I also try an auth test to see if there was a problem with the agent but that shows up with the same "unknown user" error.
I tried creating an LDAP authentication server with the same options as the LDAP lookup server for AD SSO and I get the same error.
The AD SSO was working a few days ago and the System Admin says he hasn't changed anything in the domain controller. I haven't changed anything else in the NAC config except I started rolling it out to more users.
Anyone have any idea what the problem could be?

Hi huicab,
The problem was that the LDAP user in the AD was in the wrong OU. I'm not the sys admin so I'm just telling you what he told me lol.
We sniffed the port of the AD server and he realised that the credentials were being denied by AD even though no failed login attempts were logged in the system (weird =/). So he did some stuff on the user, double checked the password and all the other values and it started working. I have no clue how come it stopped working though. Now that you mention it, it was probably a security patch in the domain controller that stops users in a certian OU or outside of a certain OU from doing certain stuff. I dunno I'm really not a Windows guy but I'd recommend using Wireshark to sniff the Domain Controller's NIC at the time of the AD SSO login attempts to see what packets it gets and what reply it sends out, then you can take action from there.
Hope this helps!
~ Xavier

There is an "unknown" user in my folder info windows

Who is this mysterious "unknown" user? I can never change his (or her) Privileges. The icon, currently grayed out, is of a user behind a timepiece, a Lépine by the looks of it.
How can I get rid of him (or her) without actually defenestrating my laptop?

This means that the Group ownership field has a Group ID that is not contained in /etc/group, so the Finder just substitutes 'unknown'.
There are 4 billion possible Group ID numbers, but only a handful are ever used. Somehow you have stored a file on your system that is using a Group ID that does not contain a name in /etc/group
For example, if you received a ZIP file (or any other container file) and unpacked it, it is possible that the Group ID from another system was used when creating the file on your Mac.
You can use Applicaitons -> Utilities -> Terminal to change the group owner
sudo chgrp staff "/path/to/the/file.name"
Or you can just ignore this, as it is most likely harmless
Message was edited by: BobHarris

SM04, AL08 active unknown users getting increased

Hi All,
While connecting through SAPGUi, getting an error
"Application Server is overloaded currently"
"Maximum no of connections terminals reached"
If i checked in the sap system in "SMO4 and AL08" the no of unknown users is continually increasing" and these are showing as active users without any name.
the user name is blank, and it continually increasing like this. we are having only 5 users created in the system.
If i am terminating the users from SM04 and again its coming after refresh like this its increasing like 200, 3000....etc users.
Due to this i am getting above mentioned error.
Please help me on this, why the unknown users are getting increased and those are GUI users not RFC users.
Please suggest, how t fix it and what may be the root cause
Thanks in advance.
Best Regards
Vamsi

Can you please paste the trace file dev_w0,dev_disp from the work directory.
Also check this SAP note
Note 1040464 - Blank row in SM04
Try upgrading the kernel .
Regards
Ratnajit

There is an unknown user/calendar in iCal

Hello,
there ist an unknown user/calendar in iCal like on this picture with the name "Stefan Elbinger". I don't know who is it.
How can I delete this calendar?
Many thanks,
Bernhard Brause

This means that the Group ownership field has a Group ID that is not contained in /etc/group, so the Finder just substitutes 'unknown'.
There are 4 billion possible Group ID numbers, but only a handful are ever used. Somehow you have stored a file on your system that is using a Group ID that does not contain a name in /etc/group
For example, if you received a ZIP file (or any other container file) and unpacked it, it is possible that the Group ID from another system was used when creating the file on your Mac.
You can use Applicaitons -> Utilities -> Terminal to change the group owner
sudo chgrp staff "/path/to/the/file.name"
Or you can just ignore this, as it is most likely harmless
Message was edited by: BobHarris

Logon failure: unknown user name or bad password.

Hai,
I am trying to move the file from application server to folder in non-sap server using DOS commands in a batch file.
Commands in the batch file is below.
E:
cd E:\HSBC\HSBC_IN\
for /f %%a IN ('dir /b *.xml') do (
move %%a
host name\HSBC\Temp
exit;
I have created a command in SM69(E:\HSBC\hsbc.bat) and trying to execute, it is properly executing in Development server and file is moving. Same is not executing in Quality server. Its giving an error as Logon failure: unknown user name or bad password. External program terminated with exit code 1. For that destination folder i have given permission for both Delelopment server and Quality server.
Please help on this issue with high priority .
<priority is downgraded>
Thank you.
Edited by: Suhas Saha on Sep 12, 2011 2:52 PM

Hi,
May be my suggestion is a stupid one but still you can just look into it if nothing works out.
See the non-SAP server you are mentioning here, should also be same type I mean if you are moving file from SAP-DEV then the non-SAP server also should be of type DEV, SAP-Quality to Non-SAP Quality etc
Check this.

The report server has encountered a configuration error. Logon failed for the unattended execution account. (rsServerConfigurationError) Log on failed. Ensure the user name and password are correct. (rsLogonFailed) Logon failure: unknown user name or bad

The report server has encountered a configuration error. Logon failed for the unattended execution account. (rsServerConfigurationError)
Log on failed. Ensure the user name and password are correct. (rsLogonFailed)
Logon failure: unknown user name or bad password
am using Windows integrated security,version of my sql server 2008R2
I have go throgh the different articuls, they have given different answers,
So any one give me the exact soluction for this problem,
Using service account then i will get the soluction or what?
pls help me out it is urgent based.
Regards
Thanks!

Hi Ychinnari,
I have tested on my local environment and can reproduce the issue, as
Vaishu00547 mentioned that the issue can be caused by the Execution Account you have configured in the Reporting Services Configuration Manager is not correct, Please update the Username and Password and restart the reporting services.
Please also find more details information about when to use the execution account, if possible,please also not specify this account:
This account is used under special circumstances when other sources of credentials are not available:
When the report server connects to a data source that does not require credentials. Examples of data sources that might not require credentials include XML documents and some client-side database applications.
When the report server connects to another server to retrieve external image files or other resources that are referenced in a report.
Execution Account (SSRS Native Mode)
If you still have any problem, please feel free to ask.
Regards
Vicky Liu
Vicky Liu
TechNet Community Support

Issue with "unknown user type 6" on Coherence 3.5.2

Having an issue with a cluster which is running using an internally developed cluster starter tool. This tool, and the associated cluster, all use POF, and upon attempting to connect a non-storing member to the cluster from java, the following exception is raised...
2011-07-11 15:54:58.338/2.469 Oracle Coherence GE 3.5.2/463p2 <Error> (thread=Cluster, member=n/a): This cluster node is
configured to use serializer com.tangosol.io.pof.ConfigurablePofContext {location=application-pof-config.xml}, which ap
pears to be different from the serializer used by Member(Id=1, Timestamp=2011-07-11 15:34:30.779, Address=10.74.82.193:8
088, MachineId=11188, Location=site:INTRANET.BARCAPINT.COM,machine:ldnpsm020006423,process:80976,member:ldnpsm020006423:
cacheserver:1).
java.io.StreamCorruptedException: unknown user type: 6
at com.tangosol.io.pof.PofBufferReader.readAsObject(PofBufferReader.java:3289)
at com.tangosol.io.pof.PofBufferReader.readObject(PofBufferReader.java:2600)
at com.tangosol.io.pof.ConfigurablePofContext.deserialize(ConfigurablePofContext.java:348)
at com.tangosol.coherence.component.util.daemon.queueProcessor.Service.readObject(Service.CDB:4)
at com.tangosol.coherence.component.util.daemon.queueProcessor.service.Grid$ServiceConfigMap.readObject(Grid.CDB
:1)
at com.tangosol.coherence.component.util.daemon.queueProcessor.service.Grid$MemberConfigResponse.read(Grid.CDB:1
3)
at com.tangosol.coherence.component.util.daemon.queueProcessor.service.Grid.onNotify(Grid.CDB:123)
at com.tangosol.coherence.component.util.daemon.queueProcessor.service.grid.ClusterService.onNotify(ClusterServi
ce.CDB:3)
at com.tangosol.coherence.component.util.Daemon.run(Daemon.CDB:42)
at java.lang.Thread.run(Thread.java:619)
There is no serialiser configured in the cache config, instead we just set tangosol.pof.enabled=true, and set the pof config file to what is seen above. The thing which is very confusing about this error is that unlike other clients which we connect, and in fact the servers they connect to, this client never attempts to load the cache configuration file. The point at which this should happen, prior to pof loading, shows:
2011-07-11 15:54:57.260/1.391 Oracle Coherence GE 3.5.2/463p2 <Info> (thread=Main Thread, member=n/a): Loaded cache conf
iguration from "jar:file:/C:/Program%20Files/Oracle/coherence/3.5.2b463P2/lib/coherence.jar!/reports/report-group.xml"
I have tried every combination of classpath entries I can think of, and no matter what, it never shows an attempt to load the application-cache-config.xml supplied in the startup. Does anyone have any experience with something like this?

I guess your non-storing JAVA code does not specify -Dtangosol.pof.enabled=true and the -Dtangosol.pof.config =<POF file location> on joining the cluster. Post the startup java command and the complete logs.
If application-cache-config is not loaded then coherence-cache-config.xml should be loaded by default and set -Dtangosol.coherence.cacheconfig=<application-cache-config>
Cheers,
NJ

Error: sql.SQLError: [-4008] (at 1) Unknown user name/password combination

Hello Experts,
After a Test refresh for SCM system, we restored Livecache. The database has been changed and starts using database manager, during registration (Register LCApps) it gives the following error:
Logical Command: DBMRFC
Parameter: exec_lcinit register
Name and Server     : LCQ - dusepierp12
DBMRFC Function     : DBM_EXECUTE
Command             : exec_lcinit register
Error               : DBM Error
Return Code         :     -24964
Error Message       : ERR_EXECUTE: error in program execution#
0,sap\lcinit LCQ register -uDBM , -uDBA , -uSQL ,
liveCache LCQ (register)
The liveCache state is ONLINE
DBMServer 7.6.04   Build 009-123-182-193
Creating liveCache application procedures
ERROR : liveCache LCQ not registered (see "s:\sapdb\data\wrk\LCQ\lcinit.log").
START *****************************
liveCache LCQ (register)
Thu 07/30/2009
10:26 PM
installation path = S:\sapdb\LCQ\db
OK
DBMServer 7.6.04   Build 009-123-182-193
Creating liveCache application procedures
ERR
-24964,ERR_EXECUTE: error in program execution
1,""S:\sapdb\LCQ\db\bin\x_python" "S:\sapdb\LCQ\db\env\lapps.py" -R "S:\sapdb\LCQ\db" -d LCQ -u DBADMIN,*"
Traceback----
Error----
sql.SQLError: [-4008] (at 1) Unknown user name/password combination
Traceback (most recent call last):
File "S:\sapdb\LCQ\db\env\lapps.py", line 38, in ?
    connectAndInstall (install, install.__doc__)
File "S:\sapdb\LCQ\db\env\installib.py", line 398, in connectAndInstall
    session = connect (options)
File "S:\sapdb\LCQ\db\env\installib.py", line 350, in connect
    alterUserNotExclusive(options)
File "S:\sapdb\LCQ\db\env\installib.py", line 338, in alterUserNotExclusive
    session.release()
AttributeError: 'NoneType' object has no attribute 'release'
ERROR : liveCache LCQ not registered
Thu 07/30/2009
10:26 PM
END ******************************
Many Thanks,
TIA,
Nisch

Nischal Mahakal wrote:>
> Hello Experts,
>
> After a Test refresh for SCM system, we restored Livecache. The database has been changed and starts using database manager, during registration (Register LCApps) it gives the following error:
> -24964,ERR_EXECUTE: error in program execution
> 1,""S:\sapdb\LCQ\db\bin\x_python" "S:\sapdb\LCQ\db\env\lapps.py" -R "S:\sapdb\LCQ\db" -d LCQ -u DBADMIN,*"
> -
Traceback----
Hi there,
looks like you entered "DBADMIN" when you created the liveCache instance in DBMGUI as the DBM Operator.
For SAP installations, this user is always named "CONTROL".
So, drop the instance again, recreate it with "CONTROL" and re-do the recovery of the liveCache backup.
regards,
Lars

Unknown User Error Message, Do I have a Virus?

Today I checked my AOL email and had over 40 messages in my inbox all within a very short time frame. I recognize most of the email addresses that came back with the Unknown User messages. I did not send any emails out and there is no record in my sent box that says that I send those emails. Could I have a Virus? I always thought mac computers don't get viruses. I am concern that I have one and if I do what should I do. I did change my password to my email after it happen. Here is a copy of one of the email error messages that I got. For the protection of my friends email and mine I changed it in this copy of the email. Friends email- [email protected], My email- [email protected]. I also got one additional email that was sent to me, from me that I never sent. Again no email in my sent box and of course I did not click on the link that was in that email. I will also post that email but will change only my email. Please do not click on the link since I am thinking it might be a virus but I wanted to include it, hoping it will help. Thank you in advance for your help.
ERROR MESSAGE:
* ATTENTION *
Your e-mail is being returned to you because there was a problem with its
delivery. The address which was undeliverable is listed in the section
labeled: "----- The following addresses had permanent fatal errors -----".
The reason your mail is being returned to you is listed in the section
labeled: "----- Transcript of Session Follows -----".
The line beginning with "<<<" describes the specific reason your e-mail could
not be delivered. The next line contains a second error message which is a
general translation for other e-mail servers.
Please direct further questions regarding this message to the e-mail
administrator or Postmaster at that destination.
--AOL Postmaster
----- The following addresses had permanent fatal errors -----
<[email protected]>
(reason: 550 5.0.0 <[email protected]>... User unknown)
----- Transcript of session follows -----
... while talking to mx1.webexone.com.:
DATA
<<< 550 5.0.0 <[email protected]>... User unknown
550 5.1.1 <[email protected]>... User unknown
<<< 503 5.0.0 Need RCPT (recipient)
Final-Recipient: RFC822; [email protected]
Action: failed
Status: 5.0.0
Remote-MTA: DNS; mx1.webexone.com
Diagnostic-Code: SMTP; 550 5.0.0 <[email protected]>... User unknown
Last-Attempt-Date: Thu, 7 Oct 2010 18:27:52 -0400
Return-Path: <[email protected]>
Received: from imo-ma04.mx.aol.com (imo-ma04.mx.aol.com [64.12.78.139])
by imr-da06.mx.aol.com (8.14.1/8.14.1) with ESMTP id o97MRjkm008439
for <[email protected]>; Thu, 7 Oct 2010 18:27:45 -0400
Received: from [email protected]
by imo-ma04.mx.aol.com (mailoutv42.9.) id z.ee2.72ae6c8 (43849)
for <[email protected]>; Thu, 7 Oct 2010 18:27:41 -0400 (EDT)
Received: from smtprly-mc01.mx.aol.com (smtprly-mc01.mx.aol.com [64.12.95.97]) by cia-dc04.mx.aol.com (v129.4) with ESMTP id MAILCIADC046-d3c94cae49563c4; Thu, 07 Oct 2010 18:27:37 -0400
Received: from webmail-d010 (webmail-d010.sim.aol.com [205.188.181.34]) by smtprly-mc01.mx.aol.com (v129.4) with ESMTP id MAILSMTPRLYMC013-d3c94cae49563c4; Thu, 07 Oct 2010 18:27:34 -0400
To: [email protected]
Content-Transfer-Encoding: quoted-printable
Subject:
Date: Thu, 07 Oct 2010 18:27:34 -0400
X-MB-Message-Source: WebUI
X-AOL-IP: 41.215.217.83
X-MB-Message-Type: User
MIME-Version: 1.0
From: [email protected]
Content-Type: text/plain; charset="us-ascii"; format=flowed
X-Mailer: AOL Webmail 32761-PHONE
Received: from 41.215.217.83 by webmail-d010.sysops.aol.com (205.188.181.34) with HTTP (WebMailUI); Thu, 07 Oct 2010 18:27:34 -0400
Message-Id: <[email protected]>
X-Spam-Flag:NO
X-AOL-SENDER: [email protected]
The email that I got that was from me, to me. Again do not open the link, I would feel horrible if caused anyones computer harm, again I also changed my email address for the posting.
hi! Jen!http://made-of.fr/to.php Best regards, ,[email protected]

The emails are almost certainly coming from someone else's computer, not from your account. This will be definite if you can't see any of these emails in any of your "sent mail" folders and only are finding out about it by mail bouncing back or someone telling you that they've received such an email from your email address.
This type of infection, which exclusively infests Windows systems, uses a technique known as "spoofing," (mentioned by the other posters) by which the virus or worm randomly selects an email address it finds on an infected computer. The virus/worm uses this address as the "From" address when it performs its mass-mailing routine rather than using the real email address of the user of the infected system. If your address happens to be the one randomly chosen, then anyone receiving one of these emails sees your email address as the apparent sender. In addition, if any messages bounce back (either because the address is no longer valid or the mail server finds the virus and rejects the message), you get hit with the bounce rather than the actual (unknowing) sender, even though the messages didn't come from your system and may be from addresses you've never heard of.
Here's an example; Jane is using a computer infected with a Windows email virus or worm. Jane is either not using an antivirus program or does not have current virus definitions. When the virus/worm activates and runs, it randomly searches the Windows address book and finds the email address of Bill. The worm inserts Bill's email address into the "From" portion of an infected message, which it then sends to Janet. Janet then contacts Bill and complains that he sent her an infected message. When Bill scans his computer, the virus checker does not find anything, because his computer is not infected.
There's nothing you can do if, as appears to be the case, the emails aren't coming from you. All you can do is notify all your friends and colleagues who have Windows systems and who would know your email address and get them to update their antivirus protection.
Regards.

"Logon failure: unknown user name or bad password" even with correct Credentials

I have networked PCs before many times successfully, so this is not my first time trying to network PCs in a home environment. Though I’m wondering if Windows 8.1 is part of the problem.
I would have thought that for sure, until one of the new laptops running W8.1 would not connect to any of the other three PCs/Laptops running W8.1. Yet these other three W8.1 PCs/Laptops CAN connect to this laptop. Then it gets a little more interesting:
this same laptop that couldn’t connect to those three W8.1 PCs/Laptops, CAN connect to a Windows 7 desktop, and a XP Laptop, and those two can also connect back to it without issue. It’s almost like my network is divided in half, and only half can talk to
each other. But then when I thought it couldn’t get any more interesting, I realized the first three W8.1 PCs/Laptops can talk to the others, it’s just that the others (W8.1 Laptop, W7 Desktop, XP Laptop) can’t talk back to them without getting the error,
"Logon failure: unknown user name or bad password” even though the username and password are 100% correct.
I don’t fully understand this error, because on the surface, it’s just WRONG!
My username and password are correct, but it appears something somewhere is interfering or hijacking the authentication process. Three of the computers (laptops) are brand new, just purchased last week and setup this week. The HostPC is also fairly new,
just purchased last month.
I am not using a HomeGroup, and have removed all computers that were part of a HomeGroup. I have enabled file sharing and network discovery and enabled “Use user accounts and passwords to connect to other computers” on all PCs.
I have DSL and am using the wireless modem provided by my ISP which has router functionality built into it. It is a Sagemcom Model: F@ST 1704N.
All computers are connected wirelessly. Time is correct on all PCs. I cannot use Group Policy, since they're all Standard or Home edition. DHCP is enabled and all computers are on the same subnet, using the 192.168.254.x range of ip addresses.
The six computers are as follows: (I figured this may make is easier to visualize the layout)
HostPC: HP Desktop W8.1
PC Name: DrsBlend
U/N: DrsBlend p/w: 123456 (not showing my real password)
PC1: HP Laptop W8.1
PC Name: DrsBlend-1
U/N: DrsBlend    P/W: 123456
PC2: HP Laptop W8.1
PC Name: DrsBlend-2
U/N: DrsBlend    P/W: 123456
PC3: HP Laptop W8.1
PC Name: DrsBlend-3
U/N: DrsBlend    P/W: 123456
PC4: HP Desktop W7 SP1
PC Name: DrsBlend-4
U/N: DrsBlend    P/W: 123456
PC5: Dell Laptop XP SP3
PC Name: DrsBlend-5
U/N: DrsBlend    P/W: 123456
Every PC stated above has the same user name and password and is logged-in with the username, DrsBlend and the password 123456. The "Logon failure: unknown user name or bad password” happens when trying to access HostPC, PC1, or PC2 from PC3, PC4, or
PC5.
The HostPC can see and connect to all the PCs, but only PC1 and PC2 can talk back or access the HostPC.
It’s like the HostPC and PC1, and PC2 are in their own little clique, and can talk back and forth to each other. Those three PCs can also talk to PC3, PC4, and PC5 as well, but PC3, PC4, and PC5 cannot talk back to them (HostPC, PC1, PC2).
Profile corruption? I would have entertained that thought, but the fact the first three PCs can access and talk to one another kind of defeats that idea, and the fact the PCs were just recently setup.
Firewall? Disabled, and disabled TrendMicro with no change. With them on/off, the first three PCs can still talk to each other and the rest of the PCs.
Anyone have any additional suggestions?

Hi，
How did you connect to other PCs? Do you use RDP to connect to other PCs? If so, check the version of the RDP, as I know, some low version RDP can't connect to higher Windows like 8.1.
And could you please tell us the detailed information about how the six PCs connect to the home network?
Can PC1, PC2, PC3 ping back to host PC, PC1 and PC2?
You can also run command " rundll32.exe keymgr.dll, KRShowKeyMgr " view the credentials stored in your PC,check whether this issue is related with some old credentials stored in your system.
Yolanda Zhu
TechNet Community Support

My PC cannot find my Mac and also it ask for a password and I put it in and tell Logon failure:unknown user name or bad password

I need some help on my MAC about them problem that I have and the question is: My PC cannot find my MAC and it ask a question about putting in the password and I did it come back and said: Logon failure: unknown user name or bad password.
Thank You
Lumpy

You have to explain a little more fully what you are trying to do and what protocol. Whats your set up?

Unknown user in Terminal???

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