Upgrade OX-AppSuite 7.8.4-ucs10

I wanted to upgrade ox-appsuite from version 7.8.4-ucs10 to version 7.8.4-ucs12, because it is recommended to do so, before trying to upgrade to univention-server-version 4.2.5

The version-overview (univention-app info):
grafik

The upgrade seems to work and finish’s with the information that the bind9-service is reloading.
After that I can’t even ping the server from internal, but the server can ping my client for example, they are in the same network.
The bind9 service is running and seems not to have any problem!

Maybe any ideas?

Solved.
Don’t do upgrade over ssh, best way is to run the upgrade directly on the command line of the server.
Or the command with the following parameters:
univention-upgrade --ignoreterm --ignoressh --updateto=4.3-0
First upgrade all apps to the highest possible and compatible version, then try to upgrade UCS.
If UCS or OX is not responding on the normal IP or address check if the interfaces are up and if it is possible to ping them (both ways). Check Apache-Conf, Interfaces and DNS-Entry!

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