Few times in a week I have been experiencing this problem on my XE75 Pro , See below screen shot. 

The XE75 pro has the 160 MHz feature which allows high bandwith speeds but downgrades when it detects radar signals. When the deco switches back to 80 MHz its pretty much disconnects all 2.4 Ghz devices, Sky Q , Ring Doorbell and chimes and most of the smart lights etc. They may come back but can be 15-20 minutes later. 

On some occasions the Loft Satelite node  which generally has strong wireless backhaul and very good speeds goes offline does not reconnect to the Main deco and needs to be power cycled. ( yellow or red light ) . 

The XE75 will not go back to the 160 MHz wifi setting unless you manually do so in the app even though the message says " Temporarily" . I believe this DFS strike is false or not accurate as i am not near any airports or a weather station/ radar based in the UK England . 

If i cannot use the 160htz my bandwith speeds are generally much slower. 

Why do my 2.4 Ghz devices seem to disconnect and struggle to reconnect when this happens  and does the system eventually go back to 160 Mhz or does it not work.