Erik/John,


>>Did you try to move the networkcard to another PCI slot ?
>>It did solve the problem for me.

>Curious- did your symptoms include _all around_ slow access times, or just opening shared tables? On my client's system, all other network is normal.

Unfortunately I'm not sure. I think it was slow overall. After some more info from John, it seems that it has to do with the exclusive oplocking mechanism on NT servers.

I just noticed Q265006 of the MS knowledgebase that might apply to both of your problems.

Like I told you in one of the messages regarding this subject before, the oplock mechanism requires some communication between two workstations to flush buffers and break to oplock mode none. Comming to think of it. Did you messure accestime when more than one workstation already has openen the file (and already has written to it), before the problem workstation tries to open it ? If two workstations already have opened the shared file, the server already has breaked to oplock mode none. In this case there is no need for extra communication between servers and workstation. If in your case accestime is normal, it is definitely a problem in the oplock mechanism, and you'll have to play with some registry settings in HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet \Services\LanmanServer\Parameters.

Have you already tried to turn the opportunistic locking (of your workstation) off ? by setting \HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\LanmanWorkstation\Parameters\UseOpportunisticLocking to 0 (false) and restart the workstation.

See also Q129202

HTH

Walter,