> 1) When you said unable to establish TCP connection, is it based from not able to do file transfer or intermittent web browsing?
Any tcp connection fails including wget, curl, telnet, ssh, tcp-dns etc.
> 2) Have you tried out 10Gbps connection to see if there is also the rx crc error?
We were interested in 40gb link, so we didn't. Need some time to take consultations and testing.