Windows Server 2008 R2 Printers Stop Sharing

Hi,

We have a Windows Srv 2008 R2 installation which is our print server.  We have noticed that everyday for the last few days at approx 11:55am that people cannot print and also lose the ability to search for printers.  To fix the problem we have to reboot the server.

I have looked in the event viewer but cannot see anything that would suggest a fault.

Any ideas?

Thanks.