On 2022-08-27, Jeremy Ardley <jeremy@ardley.org> wrote: >> >> I'd appreciate any suggestions about how to diagnose or cure the >> problem. I have set VERBOSE=yes in /etc/default/networking >> > First of all ensure NetworkManager is really dead. Your advice and the advice of Andrew M.A. Cater appear to be antithetical. This is only an observation and not a criticism of any kind. Maybe it's not a useful observation, though. I don't know.