Many people are blaming their router for problems when it’s probably your isp provider.
My isp provider is currently giving me download speeds of 90+ Mbps and upload speeds of 10+ Mbps. However, they change throughout the day. I’ve seen my upload speeds drop to as low as 7 Mbps. At 7 Mbps I can only support 2 Wyze cams uploading HD 1080p to the cloud or remote viewing. And, that’s assuming nothing else in my system is competing for upload bandwidth. You can view a large number of cameras locally because it’s your router speed (which is several hundred Mbps) that is being used.
It’s your isp upload speed that is limiting the number of cameras that can be uploading to the cloud or be used for remote viewing outside of your WiFi range.
For instance, on my system, I could safely only use 2 cameras set to HD mode, or approximately 4 cameras set to Standard or 8 cameras set to 360p. And that’s assuming nothing else is competing. Using the Wyze free cloud service, I seldom have a problem using HD on 4 or more cameras because it is unlikely that more than 2 cameras are “uploading” events at the same time. If I were subscribing to full-time video recording to Wyse, I couldn’t reliably be using HD 1080 on more than 2 cameras.
(Note: I am not addressing router linking with Wyze, which some people seem to have.)
Bottom line: Check your isp upload speeds throughout the day. The lowest speed you record will show you the number of cameras that can be uploading at the same time.
Wyse Cams set to HD 1080p,15Fps, use about 2.5 Mbps per camera. So, if your minimum upload speed for the day is 6 Mbps, you can only reliably be uploading 2 Wyze cams set in the HD mode. This also the reason your Wyse Cams reset occasionally to 360p.