After some research it seems like this is a common issue - very bad since AVM is the most common manufacturer of DVB-C devices in german-speaking countries.
User @zeppel intended to downgrade to a working PMS version for performing the channel scan only. Since I am already on DSM 7 I assume that there is no DSM7 compatible version for version 1.20 available, is it?
Any ideas on how to make this happen?
