TP-Link Deco Mesh WiFi bricking Ring cameras

I have two cocoon devices (security cameras and audio detectors), an Aldi external camera, a cheap chinese robot camera, all operating on the same wifi network, a ^irginmedia network originally, then a TP-Link Archer C7 router, now a Deco M4 mesh network.

ALL operate with no changes as I kept the same ssid and password, I can view the Coccoon video almost instantly, definatelty no worse than before, the chinese camera is instant, as is the external camera (via iVideon service)

I can RDP to my PC at home and even watch video on the screen with no noticable issues, broadband is 360MB so everything is pretty fast, except… Ring Doorbell 2 has always been slow to respond, live view takes an age to see, someone presses the bell, I respond and there is no one there, it takes so long they have left. Now I have issues of mutiple movement notifications and cant see live view most of the time, just “connecting…” on a black screen, and fast roaming has always been disabled.

I just wish it worked like their adverts…