On Mon, 28 Mar 2022, Jeremy C. Reed wrote:
Any ideas why telnet works slowly but ssh does not at all in these cases? telnet is usable but cannot even see one character sent over ssh when ssh locks up (again it restores about 5 to 10 seconds after I stop or suspend a speedtest or rsync job).
Could be a QoS issue when a lot of packets are being xferred. Try out a few different QoS options (explicitly) in ssh (though it should already be setting some kind of low-delay one by default): ssh -oIPQoS='lowdelay' ... Adding QoS rules to PF/NPF might also help. pf.conf(5) has a bare-bones example. -RVP