I have a Windows 2012 guest with Exchange 2013 running on Hyper V Core 2012 host. My issue that I experience on with this guest is that after restarting the guest it says unknown network and after 5 minutes only it detects the domain network. The other guests on this host don't show any issues like this at all.
The network run on a Windows 2012 domain environment with 2 domain controllers that also acts as DNS servers.
I have done the following :
1. Update the Windows 2012 guest and host with the latest updates
2. Delete and recreate the network card in the guest
3. Disable the Firewall
Any ideas?