We have a very strange problem with User Profile Service. We configure the properly by following this guide provided here http://www.harbar.net/articles/sp2010ups.aspx. The User Profile Service and the User Profile Sync. services start normally. But then when a syncronization connection is created the computer frezzes (the Windows, Keyboard) and nothing happens untill we do a restart.
We have SP1 with April 2012 CU installed on the dev. machine. Neighter the Event log or ULS have errors logged.
Please help! :)