Short and to the point.
I have a surfboard sb8200 and 2 mesh w21's. Only 3 days old from Amazon.
I have 4 devices way passed the satellite and there all 2.4 only and their only on the main router.
I have a camera off a ways also and it's the only one on the satellite. If I go outside with my Galaxy watch it goes on the satellite. The main says there are 4 devices with poor signals, but still work, and they won't go on the satellite. My main has 15 devices and my satellite has 1 and my watch sometimes.
I've read lots of ideas from people that think their correct. It's crazy arris won't help anyone, they just have self help. I'm going to wait until 1 month when the warrenty is about to expire and return it and keep getting a new one until I get help.