I have 4 cameras that save videos on my smart hub.

In the last week or two it's stopped saving recordings for one camera and when I go the the "local recordings" page and try to (re-)select the hub it says "Maximum number of connected devices reached".

I've rebooted the hub and camera with no effect.

If I change another camera to save to its local memory, then I can connect the failing camera to the hub but I then can't reconnect the other camera, so it appears that 3 is the limit.

What's going on here? It WAS ok, and 3 devices surely can't be a new limit