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W2K Pro logs itself off NT 4.0 Domain

By maxwell edison ·
I’ve got a 40-client network - NT 4.0 on the servers, Windows 9x on the clients. One of the clients, however, is a Windows 2000 Professional, which was preinstalled on a Sony Laptop. A user account is established on the PDC for this single user Windows 2000 client, and it can log into the NT domain without any problems. But this machine will randomly log itself off the network - anywhere between 1-6 times a day. There is no apparent correlation between the amount of usage and the frequency of the problem. If the user reboots the computer it logs into the domain without any problem.

I’ve seen this or similar problems mentioned before, and I have indeed tried several solutions over the past few weeks. But I would rather notlist what they were because it would be too lengthy to describe, and I wouldn’t mind if a redundant solution was suggested just in case someone might explain it in a way that might show that I missed something.

Any questions you may have will be answered in further comments to this question.

Thanks for your time,

Maxwell

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W2K Pro logs itself off NT 4.0 Domain

by maxwell edison In reply to W2K Pro logs itself off N ...

Point value changed by question poster.

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W2K Pro logs itself off NT 4.0 Domain

by DKlippert In reply to W2K Pro logs itself off N ...

Just a guess, it might be a browser election. Try turning off the election on the laptop:

Description of the Microsoft Computer Browser Service

Q188001

Troubleshooting the Microsoft Computer Browser Service

Q188305


The order of command is:

Windows 2000 Server
Windows 2000 Professional
Microsoft Windows NT 4.0 Server Enterprise Edition
Microsoft Windows NT 4.0 Server
Microsoft Windows NT 4.0 Workstation
Microsoft Windows 98
Microsoft Windows 95
Microsoft Windows for Workgroups 3.11

You might also look at:

Symptoms of Multihomed Browsers

Q191611

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W2K Pro logs itself off NT 4.0 Domain

by DKlippert In reply to W2K Pro logs itself off N ...

\HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Browser\Parameters\MaintainServerList


Values:
No --- Never acts as a browser

Yes --- Forces election if no MasterBrowser is found, otherwise becomes a backup browser

Auto --- Potential browser, the MasterBrowser will tell it to either become a browser or not. This is the default for Workstation and Server.

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W2K Pro logs itself off NT 4.0 Domain

by DKlippert In reply to W2K Pro logs itself off N ...

Of course no spaces in the registry path

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W2K Pro logs itself off NT 4.0 Domain

by maxwell edison In reply to W2K Pro logs itself off N ...

I’m not sure which one of these three answers provided the solution to this problem - or if it was a combination of all of them. Nonetheless, all these answers provided helpful information, and after implementing those suggestions the computer in question has maintained its network connection. It’s been working fine for two days now, so I’m calling this one solved.

Thanks for the help.

Maxwell

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W2K Pro logs itself off NT 4.0 Domain

by timwalsh In reply to W2K Pro logs itself off N ...

The first place I would check would be Local Security Policy | Security Settings | Local Policy | Security Options. Look for the setting labeled "Amount of idle time required before disconnecting session" and see if this setting has been defined. This might explain the 'randomness' of the log-offs.

The second thing to check is to whether the computer is just logging-off or is actually rebooting. An unwitnessed reboot would look to the user like a log-off. You can simply check Event Viewer | System Log and/or Application Log for system/service start-up events.

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W2K Pro logs itself off NT 4.0 Domain

by timwalsh In reply to W2K Pro logs itself off N ...

Other random thoughts (after reading your comments and replies to answers):

I gather from your comments that the user isn't actually being dumped all the way to the log-on screen, just loosing connectivity to network resouces.

Have you ever been present when this behavior occurs or been able to reproduce it yourself? You made a comment that the user seems to think that some other computer on the network is affecting his connectivity or knocking him off. I'm wondering if the user may be seeing an error message or pop-up (along the lines of duplicate computer name or duplicate IP address) that is leading to this belief, but the user isn't passing this on??

If you can determine specific times or time periods when loss of connectivity occurred, a deeper look at the event logs of both the workstation AND the PDC/BDCs may turn up something. If you haven't already done so, looking beyond the warning and error messages can sometimes turn up some clues as to what may be happening.

Check power management settings for the NIC (in Device Manager). If the settings allow the computer to turn off the NIC to save power, this could possibly cause your connectivity problems.

While you obviously can't replace the NIC as a troubleshooting step, if you happen to have a spare PC Card NIC (or can borrow one), you may be able to at least rule out (or maybe key in on) the onboard NIC as being a potential problem area.

I'm assuming that Sony tech support was of no help (or claimed it was a Windows problem), or are you trying to avoid them if possible??

As a last resort, reinstall the OS (although I'm sure you're truying to put off the "last resort" as long as possible?

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W2K Pro logs itself off NT 4.0 Domain

by maxwell edison In reply to W2K Pro logs itself off N ...

I’m not sure which one of these three answers provided the solution to this problem - or if it was a combination of all of them. Nonetheless, all these answers provided helpful information, and after implementing those suggestions the computer in question has maintained its network connection. It’s been working fine for two days now, so I’m calling this one solved.

Thanks for the help.

Maxwell

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W2K Pro logs itself off NT 4.0 Domain

by ninet4 In reply to W2K Pro logs itself off N ...

I may need some more information to correctly answer this question. In the mean time, I will suggest the following. Does the Windows 2000 laptop maintain IP connectivity even though it looses its logon? If it does, that would suggest that there may be a problem with the protocol stack, specifically your wins or netbios services/protocols. If this is the case, I would suggest removing all protocols/services from the NIC and re-installing them. If it is losing IP connectivity, that would suggest either a problematic NIC or shifty cable. I would try first replacing the LAN cable, maybe even just moving the laptop to a different LAN drop completely. If that doesn't solve the problem, try installing a different NIC.

Helpfull information would be; protocols/services installed on the laptop, IP configuration (ie. is it a routed network, if so, is the laptop on the same network as the DC), are you maintaining IP communication after system looses domain logon? Are you using DHCP?

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W2K Pro logs itself off NT 4.0 Domain

by maxwell edison In reply to W2K Pro logs itself off N ...

I answered your questions in previous comments, so if you have any additional ideas feel free to post them in a new answer.

Thanks,

Maxwell

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