I´m using two WAS7500 since a few years. They are updated to the latest firmware available. Since some month both stations got slower and slower and sometimes stopped to respond to the remote control and the buttons at the device. After this is happening I have to unplug and replug the device from power; now it works again for some days or hours.
So I tried to make a factory reset, but even after doing this the symptom described above is there again.
So I think (because it affects both devices, which will not have a hardware error at the same time) that some internal memory might be corrupt.
Therefore please tell me: Is there some other (undocumented) method to do a "real" factory reset, which might resolve these problems?