hi- My wifi router in the 5ghz mode is unstable.. 2.4ghz is fine..

I want to  visuallize the channels in use and determine the optimum channel for both the 2.4 & 5ghz bands.

My previous router had a built in tool to do the channel map  to visualize the channels in use ..

Is there an app or something from TP-Link that I can use to determine the optimum frequency ?

Auto selection in setup  is NOT what I am looking for ..

I am NOT asking for speed test  either.....

Most of the free IOS apps I saw performs only Speedtests..

Thanks

sam