Today I've got Wiitek SFP-10G-T. (It supports 1G,2.5G,5G,10G) First, I connect my PC with 2.5G NIC to SFP+ at 2.5G,full. Download speed test (ether1 advertised as 1G) shows same ~900Mbs. When I turned ether1 advertisement to 2.5G,full, my download speed drops to 95Mb/s (new firmware 7.2rc6) What wa...