We have several Hyper-V Clusters where we have the same issue. We're running Windows 2008 R2SP1 with hotfixes, latest drivers, latest FW, ... on BL460cG7 HP Blades
From some nodes we can Live Migrate and from some nodes not:
For Example
Live Migration from Node1-> Node2 = Perfect
Live Migration from Node2 -> Node1 = Live Migration fails at 10% with the error:
EventID 22000
Source: Hyper-V Worker
Message: Could not send data to the remote node: An Established connection was aborted by the software in your host machine (0x00002745)