@TP-Link I'm not sure of the difference but it does say x20 on the box and it's the WiFi 6 version. We did try your suggestion, removing all the M5s and their mesh network but this didn't work. Same...

@Alexandre. Hi...we did but then we realised we needed to turn them off and delete the former mesh network. We then started to set up from scratch again, involving x20s first but several minutes...

Please help. We've had TP-Link mesh for a few years (3 x M5) and as our smart home has grown and home working has become the norm, we decided to add some X20s to the picture. We have BT broadband...