I have 2 of those and a brand new ASUS AX55 which I already disable all advanced feature leaving just 2.4g enabled
The cameras are around 30 feet away from the router
However if I do a ping from the router to the cameras and try for example access a playback the ping times goes to 5000ms or more and timeout several time
Amcrest support is saying that those cameras is not built to works with wifi (so why they have it? they don't answer)
My chinese unbranded camera is about 50 feet from the same router and I never miss a package to it.
Any idea that can help (besides running cable of course)