There's another thread on this subject posted by Lancorp but I'm re-posting due to a request from another user.
SBS 2011 SP1, Exchange 2010 SP1 roll-up 8.
The server worked fine until a couple of weeks ago. Now we are experiencing poor network issues, slow Outlook performance, slow OWA & companyweb.
In particular the Console is extremely bad. Anything that uses the MMC performs badly, the pop up "adding snap-in to console" appears constantly and more often than not crashes first time with EMC and Event Viewer in particular. Restarting Services for example takes a long time and mostly the timer bar reaches its limit before the services stop. The server first appears ok after a reboot then performs badly. The symptoms appear to be relevant to SBS 2011 SP1 but its installed.
The end user installed a number of Microsoft updates a couple of weeks ago but I can't be sure its relevant. We may have to roll them back to see. In the meantime, does anybody know of a resolution to this issue?