This is not my real password but this is a simulation screenshot. I copied it from the first field then pasted it into the confirm field. Also, when I tested with a short coaxial cable back to back, encryption worked. After I connected to my house cable and different rooms it stopped working, until I turned off encryption.
Related questions:
1. do I need to enable encryption for Ext, Low and High Band?
2. I tried the method described in the manual where you start with one device and turn on D-Ext encryption then press the WPS button for syncing the other devices but that didn't work. Perhaps this is related.
3. should I factory reset and try the WPS method again?