GPP Printer Issues

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Is anyone else having issues with Group Policy Preferences and deploying printers?

 

Recently, I've notice certain machines or groups of machines have stopped deploying the printer preferences as expected, such as setting the correct printer as default for a member of staff but not setting it correctly for a student despite the same conditions applying to both users, however the majority of other machines in the room work correctly.. I've used GPP to deploy the printers since we migrated across to Windows 7 and apart from the odd bug which was resolved by a hotfix it's all been fine. Normally if I hit this point I'll go and delete the profiles, remove the printer drivers from the workstation and then log back on and it's quite happy - it's being more stubborn then usual however.

 

It seems to have started happening since around Christmas, the only things that have changed are Windows Updates and updating Papercut on the print server - the print server is still the same otherwise as are the drivers.

 

It's going to be a job I try and tackle properly next week with no one else in, but if anyone has a suggestions as to where to start it would be much appreciated!