Cameras segregated and blocked from Internet on Guest network. NAS on main network (ethernet).
This worked great until recently (iOS 14.5 update?). ICSEE app no longer connects to cameras unless cameras stay connected to Internet. That ain't gonna ever happen, for security reasons.
I have Synology Surveillance Station (and licenses). I want to go back to using that and ditch ICSEE, but I do not want my NAS directly connected to the Guest network. M9 Plus handles everything (all LAN routing). How to get the cameras on the Guest network to communicate with the NAS on the main network?