We have a user running an NT network with a hub and some 50 terminals.

Once or twice a day each terminal just drops out of OI back to Win95/98, sometimes while the terminal appears to be idle.

Any suggestions what may be causing this?

Assuming that OI is not the only application that is cutting out:

(a) check and disable the BIOS power management features, bth in the BIOS setup and (if present) in the operating system

(b) using REGEDIT, check that the server and the workstations have no connection timeouts set. The default for NT 4.0 workstations is 600 seconds - long enough for a coffee or lunch break.

http://support.microsoft.com/support/kb/articles/q102/9/81.asp

You can modify the startup parameters for the Workstation service using the Registry Editor. Unless otherwise indicated, these value entries are found in the following Registry path:

   HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet

   \Services\LanmanWorkstation\Parameters

KEEPCONN REG_DWORD 1 TO 65535 SECONDS

Default: 600

Specifies the maximum amount of time that a connection can be left dormant. This parameter is the redirector equivalent of the Disc parameter in the Services\LanmanServer\Parameters subkey.

As a general rule, try increasing this value if your application closes and opens UNC files to a server less frequently than 10 minutes apart. This decreases the number of reconnections made to a server.

Thanks Steve,

That is a very comprehensive answer.

Bianca

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