Device problem occurs on: Netgear R7800
oftware versions of OpenWrt/LEDE release: Latest 18.06 branch revision
I've run an iperf3 test, I have records of automated tests that I run every 2 hours that show the usual performance is 380Mbps to bouygues.iperf.fr, however on 18.06 the max attainable is just over 60Mbps in a single threaded test. I need to go to at least 10 threads to get close to 380Mbps.
I reverted to stock and a 17.01 build to verify that there was no issue with the internet connection here, and they all showed the old behaviour.
This speed is unnafected by flow offload being off or on.