I'm having a strange issue here. I have 2 2012 server hyper-v servers. Hardware is identical. I created a VM on 1 host, configured everything I wanted on it with terminal services. I removed it from the domain and copied the VM several times over the 2 servers. I renamed and joined them to the network.
I created each machine with the hyper-v wizard to generate the config files. I just pointed it to the proper vhd to use.
The machines that are sitting on host 1 work very fast and everything is fine.
Machines on host 2 are slow to login and skip a beat when you try to access a file on the network.
With the Native hyper-V adaptor: ping times are 100+ms (server was pretty much unusable)
with a legacy adaptor: ping times are <1ms (better, but still a bit slow to open network files)
Things I have already tried:
Verified that network drivers are identical on both machines
copied one of the slow machines back to the original host and everything is fast
Am currently using a legacy adapter
Tried to take it off the domain and still slow
tried to disable ipv4 checksum offload
Tried different adapters on the servers
2 cisco catalyst 48 port switches stacked
2012 machines have the latest updates
Any help would be greatly appreciated