Backup crashes in about 5-10 sec. No error report, Control:Mac just disappears.

Backup to USB disc, which is connected to Airport Extreme.

Frode

Trinnov Altitude32, Kii Three/BTX, Piega 211, BO Beolab17, 4 x Piega AP 1.2, Perlisten D212S, 2 x Velodyne DD10+, RoonServer on Unraid docker.