After upgrading to 4.8 my "Mellanox ConnectX-2 IPoIB Adapter" in Win7's Device Manager no longer has a flag to specify 'connected mode' or not... and iPerf testing is showing unconnected-like performance. I was previously running OFED 3.2 and the Advanced tab for the Adapter properties let me toggle the modes.
If this was a workaround for problems with Connected Mode on ConnectX-2's in Win7... would moving to a ConnectX-3 fix things?
Thanks!