@david3 is correct about the OneMesh limitation. See here the OneMesh FAQ for more details. Here you can see the difference between OneMesh and Deco mesh. You could use AX72 as your main router and...

@stephenbeech Unfortunately you can't install Plex Media Server on your C7. The USB functions on C7 are only for file/media content sharing:

@axydas Try to identify you router's FW region and HW version by its bottom sticker - then check on the support portal for a newer FW version and update if any. The same goes for your Deco M4. Are...

@Pro4TLZZ Try setting for 5GHz band 1 channel 36 and for 5GHz band 2 channel 100 and see if that helps. Just out of interest, if you disable 5GHz band 1 and use only 5GHz band 2 does it connect @160...

@Rey1216 Follow this thread suggestions and see if that will resolve your issue.

@JackD Follow the customer support directions in this case. Let the reset to factory defaults be your last resort. If it comes to that, it would be wise to make a backup of your modem configuration...