Armbianmonitor: http://ix.io/1G0E Just reporting that there is some tx-offload bug in the ASUS Tinker Board Rockchip. I think I read about this issue regarding other rockchip/platforms when checksum offload bugs on large packets.   When I run  ethtool -K eth0 tx off I stop having issues with NFS over TCP   The last part of diagnosis is when I forced a NFS crash by enabling tx offloading.