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In 13.2 and LEAP my network connectivity frequently drops out. The wifi is
still connected. 

In DMESG I see a pair of "SFW2-INext-DROP-DEFLT IN=eth1 OUT=" entries which
seem to correspond to the drops in connectivity.

My supposition is that the SUSE Firewall is conflicting with Avahi/Bonjour
somehow and blocking all connections.

For the moment the connection seems stable, but I'd otherwise be disabling and
re-enabling the wifi to regain connectivity. 

Reproducible: Always