On of my customers complained of poor wifi performance - on checking their router i'm watching their device's (iPhone 12) rssi switching from -64 to -88 over and over, and sometimes dropping altogether. They are not moving their device while this is happening.
They said it happens on all devices so i'm thinking it's a fault with wifi radio or possibly internal antenna being damaged with a drop or something, but this is doubtful. I have upgraded OS and firmware with no change seen. I run 20mhz channels and put in 0 for antenna dbi to get 30dbm output power on 2.4.
The other strange thing is when I do a freq scan using snooper I see no other networks. MY wisp is out in the country but the neighbours are close enough for their horrible repeaters to show up in previous scans.
Have any of you seen this behaviour with hAP AC2?