Have found som strange stuff with LDAP search and logon. It seems that queries against hostname is slow and is quick when using fqdn. I created a small script to do a query to test it.
What happens during a spanning tree calculation? All ports goes into a blocked state. How could that be an issue for Hyper-V?
Latest interesting moment with SCVMM 2012 R2 is really interesting.
Have you ever run a “ping -t” just to see if the network is unstable or just to know if and when a machine has been down.