When have been getting the following error message at the console on one of our servers:

"Station xxx (task 5) timed out waiting for an op-lock on file yyyy held by
station zzz"

After a reboot all seems well for a few days then it starts again. I have searched online for help and the only thing recommended is to turn op-lock off using the following commands:

SET CLIENT FILE CACHING ENABLED=OFF
SET LEVEL 2 OPLOCKS ENABLED=OFF

Which really isn't an option as we want op-lock on to stop two users working on the same file. Is there another fix to help us with this problem.

The server is Netware 6.5 with SP7 and clients are 4.91 sp5.

Thanks