[qubes-users] networking in minimal-qube ??

I grabbed a debian-11-minimal, updated it & installed thunderbird into
it to have a mail-reading template.

It worked for some hours, but now it lost network access in its AppVM's.
When I restart the same appvm with debian-11 network is back. Do I miss
a package ??

thank you, Bernhard

Minimal templates require the 'qubes-core-agent-networking' package for networking: