Hi all,
Few times i have faced anniong issue. All times it was issue with Exchange 2010 VM's (Different Exchange servers from different domains). HyperV 2008 R2 and 2012 R2.
Server lost network connectivity from all other subnets. But in local subnet everithing is Ok. Most of communications is in local subnet but send/receive connectors stops working. After VM reboot everything becomes fine.
MAybe this is not HyperV issue but I saw those problems only vith virtualized Exchanges.
Maybe someone have seen similar issues and can provide solution.