General discussion

  • Creator
    Topic
  • #2322998

    W2K Pro logs itself off NT 4.0 Domain

    Locked

    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

All Comments

  • Author
    Replies
    • #3406284

      W2K Pro logs itself off NT 4.0 Domain

      by maxwell edison ·

      In reply to W2K Pro logs itself off NT 4.0 Domain

      Point value changed by question poster.

    • #3406260

      W2K Pro logs itself off NT 4.0 Domain

      by dklippert ·

      In reply to W2K Pro logs itself off NT 4.0 Domain

      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

      • #3415541

        W2K Pro logs itself off NT 4.0 Domain

        by dklippert ·

        In reply to W2K Pro logs itself off NT 4.0 Domain

        \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.

      • #3415540

        W2K Pro logs itself off NT 4.0 Domain

        by dklippert ·

        In reply to W2K Pro logs itself off NT 4.0 Domain

        Of course no spaces in the registry path

      • #3415916

        W2K Pro logs itself off NT 4.0 Domain

        by maxwell edison ·

        In reply to W2K Pro logs itself off NT 4.0 Domain

        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

    • #3406238

      W2K Pro logs itself off NT 4.0 Domain

      by timwalsh ·

      In reply to W2K Pro logs itself off NT 4.0 Domain

      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.

      • #3415494

        W2K Pro logs itself off NT 4.0 Domain

        by timwalsh ·

        In reply to W2K Pro logs itself off NT 4.0 Domain

        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?

      • #3415917

        W2K Pro logs itself off NT 4.0 Domain

        by maxwell edison ·

        In reply to W2K Pro logs itself off NT 4.0 Domain

        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

    • #3406232

      W2K Pro logs itself off NT 4.0 Domain

      by ninet4 ·

      In reply to W2K Pro logs itself off NT 4.0 Domain

      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?

      • #3416766

        W2K Pro logs itself off NT 4.0 Domain

        by maxwell edison ·

        In reply to W2K Pro logs itself off NT 4.0 Domain

        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

    • #3406196

      W2K Pro logs itself off NT 4.0 Domain

      by maxwell edison ·

      In reply to W2K Pro logs itself off NT 4.0 Domain

      Comment to answer number 1:

      This is an interesting possibility since this user seems to think that another computer on the LAN might be affecting his status and is somehow knocking him off the network. But I’ve insisted otherwise, since allusers have unique user names and log onto the PDC accordingly. However, if your suggestion sheds any light on the culprit, it would suggest the possibility that another server on the LAN – if turned off – could indeed knock him off the LAN if his browser list is thereby affected by the browser election option being turned on. (I may not have described it accurately, as I am still looking into it and reading those articles you suggested.) And there may indeed be case where a particular server on the LAN (not the PDC) is randomly turned on and off. I’m testing this potential cause right now, but will have to wait for the 48-minute cycle to complete as mentioned in Q188305. If this is the case, what are the required steps for turning off the browser election?

      Comment to answer number 2:

      I will look into your “first place to check” after I’ve finished my testing of answer number one as described in the previous comment. As far as your other suggestion, the computer stays on – it does not reboot – but rather loses the network connection of the mapped drives.

    • #3406180

      W2K Pro logs itself off NT 4.0 Domain

      by maxwell edison ·

      In reply to W2K Pro logs itself off NT 4.0 Domain

      Comment to answer number 3:

      No, it does not maintain IP connectivity. And I have tried uninstalling not only the protocols, but the NIC as well. I’ve uninstalled and reinstalled all hardware and software components, keeping only what I believe to be the minimum required. But it may be worth another try paying close attention to all necessary details. (Could I have missed any details?) I haven’t tried a different connection location, and it may be something to consider. But this only started to happen when his desktop computer was replaced with this laptop. (Therefore I believe it’s a Windows 2000 Professional and/or NT 4.0 Server issue.) Replacing the NIC may be difficult since it’s not a NIC card, but rather built into the laptop. I haven’t tried to open it to look, but I would rather stay away from opening a laptop. (It is still under warranty, however. And if no other solutions are successful, I may look into this option.)

      Is it a routed network,you ask? The network uses a router for only Internet and email. Connection to file servers and printers does not go through a router.

      Installed Services: Client for Microsoft Networks and TCP/IP. (No more, no less)
      Yes, the laptop is on the same network as the DC.
      Yes, it uses DHCP to obtain an IP address lease (The lease expires in 36 years.)
      Yes, autoconfiguration is enabled.
      No, IP routing is not enabled.
      No, WINS proxy is not enabled.

    • #3406104

      W2K Pro logs itself off NT 4.0 Domain

      by kuhlio ·

      In reply to W2K Pro logs itself off NT 4.0 Domain

      Here are a couple of other suggestions: what about power supply for both the laptop, and at the station? Another thing could be the cabling itself. I saw a similar circumstance occur due to faulty cabling at the drop.

      • #3416904

        W2K Pro logs itself off NT 4.0 Domain

        by maxwell edison ·

        In reply to W2K Pro logs itself off NT 4.0 Domain

        The power supply is not the cause nor is the cabling. I would eliminate the power supply because the laptop continues to operate, but just without the network connections. And I ran a different cable into this office – one that was functioning without incident – and the problem still persists.

        Thanks anyway,

        Maxwell

    • #3405252

      W2K Pro logs itself off NT 4.0 Domain

      by istal ·

      In reply to W2K Pro logs itself off NT 4.0 Domain

      Solution :
      From NT 4.0 Server to W2K SERVER.

      • #3405156

        W2K Pro logs itself off NT 4.0 Domain

        by maxwell edison ·

        In reply to W2K Pro logs itself off NT 4.0 Domain

        I am in the process of planning the implementation for that change, and I realize that it may indeed solve the problem. In fact, Microsoft recommends that Windows NT 4.0 be upgraded to Windows 2000 Server to accommodate any Windows 2000 clients, and there are indeed some known bugs with the W2K Pro on a Win NT 4.0 domain. But I still have some unresolved issues with AD and some security considerations that will delay that upgrade for a while longer. And with golf season upon us, it’s easy to put it off for a while longer.

        However, this is not the issue at hand and is not part of the equation for the resolution of the problem. There is a fix to this problem, but I just haven’t stumbled upon it yet.

        Maxwell

    • #3416769

      W2K Pro logs itself off NT 4.0 Domain

      by maxwell edison ·

      In reply to W2K Pro logs itself off NT 4.0 Domain

      Answer numbers 1 and 2:

      I’ve implemented these suggestions and, although the problem has improved, it still logs off – but less occasionally. In addition, instead of having to reboot the computer, the user can now simply go into the Local Area Connections Properties and disables then immediately enables that network connection, and the network connections are again reestablished. So it still occurs, but with less frequency and it’s easier and quicker for the user to get it back. So both answers were somewhat helpful, and both will be accepted. Hopefully there will be additional answers that can help solve the rest of the puzzle.

      Answer number 3:

      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

    • #3416761

      W2K Pro logs itself off NT 4.0 Domain

      by ninet4 ·

      In reply to W2K Pro logs itself off NT 4.0 Domain

      One more thing to check as far as network connectivity. If a system is using DHCP, there is a DHCP client service that runs. If this service is stopped for some reason, all IP connectivity is lost. Next time this happens, check to see if the DHCPservice is running. If not, start it up and renew the adapter. That should take care of the problem.

      • #3415918

        W2K Pro logs itself off NT 4.0 Domain

        by maxwell edison ·

        In reply to W2K Pro logs itself off NT 4.0 Domain

        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

    • #3415425

      W2K Pro logs itself off NT 4.0 Domain

      by joseph moore ·

      In reply to W2K Pro logs itself off NT 4.0 Domain

      I think ninet4’s answers are right on the money. I just have a few other things to add.
      Once this machine loses connectivity (the IP stack shuts down right?) check out the running drivers. See in Devices if NDIS.SYS, NDISWAN.SYS and AFD.SYS are still Started.
      The third driver you might not have, but the first two definately.
      If those system drivers fail, then I think that that would be either the reason for, or resulting from, your problem. If it is the latter, then this suggestion doesn’t help very much. 😐
      But, you can always restore these files from the NT cd (Extracting them from their respective CAB files) then re-SPing the box.

      Good luck.

      • #3415919

        W2K Pro logs itself off NT 4.0 Domain

        by maxwell edison ·

        In reply to W2K Pro logs itself off NT 4.0 Domain

        I just noticed this answer after I called this problem solved. But this is also useful to me. Thanks for taking the time to help.

        Maxwell

    • #3415915

      W2K Pro logs itself off NT 4.0 Domain

      by maxwell edison ·

      In reply to W2K Pro logs itself off NT 4.0 Domain

      This question was closed by the author

Viewing 11 reply threads