Mudball
Assistant Pro
IMHO , A switched fused outlet would do fine taken from the lighting circuit , just fit a 3 amp fuse. Remove the plug top from the router cable and connect into the 3 amp fused spur. The immerser spur may be controlled from a switch or timer .
I like the idea.. though it would depend on if the the router cable comes with removable plug.. dont fancy cutting it.. I havent bought it yet the Asus mesh yet. So the current thinking is to have a simple plug.