I have set my GPO that sets up the user environment to wait for the network during logon

I have several students logging on simultaneously, some get the policy applied correctly and some get the default local profile giving them all kinds of access I don't want them to have.

When I check the event log it states the USERENV error above and that windows couldn't access ...& then gives the path to my policy.

However all students are in the same OU.

The sysvol share and NTFS permissions are correct (as pointed to as a cause by MS KB)

It is not specific to either the particular student (logging on another machine is fine), or the machine as the next logon session on that machine might be fine.

I have checked HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Win dows NT\CurrentVersion\Winlogon\SyncForegroundPolicy and it has been set to 1 (presumably by the correct application of the GPO)

My assumption is that the number of simultaneous logons causes random machines to temporarily not have access to the sysvol folder and therefore instead of waiting for the network as per the setting its applying the local default profile.

I have tried manually adding:-

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon\WaitForNetwork (=1) but this still has no effect.

Any ideas?

Thanks in advance

Catharine