I need that all interfaces (including ethernet) are in the same broadcast domain.
Do I have to set a dynamic WDS on AP1 (in ap bridge mode)?
How do I have to set all other CPE?
Set AP in bridge mode -put WLAN and Ethernet in a bridge.
Set Cpe1 + Cpe 2 to stationbridge -put WLAN and Ethernet in a bride.
Set Cpe 3 in AP mode and bridge WLAN and Ethernet.
Try on all links nstreme or nv2. Set different frequencies on both links. If you us N-Standard set advanced datarates.
Use “bridge” mode, not “AP-bridge” This way AP will only connect to one station which is allowed. (This is how they bridge SXT units)
All the other advices given by sonny are ok.