nothing wrong with the network cable/network that I connect to the t95z I have an alfawise h96pro that I have tested on the same cable/port and that works fine with full gigabit speeds (tested with file TX and Iperf shows over 900mbps)
it seems that this dtb allows the connection to work but then it crashes after you try and put anything over the ethernet. seems the whole network stack fails. only a reboot fixes. if i force to 100mbit then it works fine. will get some logs