logon not picking up profile... sometimes

[MrDylan]

I've had a simolar problem.

I had loads of trouble with my Mandatory profile for months after upgrading all our servers. It had worked fine for a year or so until then.
There seemed to be no pattern to it either, you could set it up on a computer with a brand new user, then apply it to another test user and it wouldn't work, or it would work for all users on only a couple of PCs, then it would stop working altogether.
It seemed to be a user issue at times, and a computer issue at others.

In the end it turned out to be Group Policies.

I had to remove them all and completely redo them. This sorted the problem.

It didn't make any sense, but it worked.

[Gatt]

Machines and servers have all had Symantec AV updates and are up to date with the WSUS server, mind there's not been any WSUS updates in a while.

Hmm.. we had an issue with WSUS where it was flooding our network - took it off and network speed increased.. tho we're also getting Sh*t loads of DC problems and are looking at a complete rebuild!!