VMs with Server 2008 x64 Std sporadically losing network connection when migrated to 1 host of 2 in a 2 node cluster

we have 2 node hyper v cluster built on dell 2950 equallogic san cluster shared volume vhd storage. 2nd node added replace previous box had hardware failures. previous node gracefully removed cluster , domain prior building replacement box. unfortunately, replacement server not have exact same cpu (dual e5430 vs dual x5355) cause problem? vms on cluster have "allow migration host different cpu" tick box checked.

if performing continuous ping 1 of vms running server 2008 x64 std, pings fine 1 node 1. after migrate node 2, continuous pings start randomly failing , come back. networks on both nodes named identical , have same network cards same drivers. if migrate 3 servers (2 server 2008, , 1 xp pro 32 bit), xp vm not have issues. 2 2008 servers lose connectivity @ different times not physical problem.

any ideas?

 

i have found problem believe stability has been several hours (the longest far). virtual network these vms bound intel alb team. node 2 had rlb enabled (by default on alb teams) , once disabled, hosts migrated did not have problems.

 

thanks assistance , pointers.

Windows Server  >  Hyper-V