I'm using a two weeks old EAP660 HD. Omada Controller is installed on a ESXI VM.

The WIFI connection is so unstable that even streaming Spotify is not working right. Well with 30% packet loss/error. Nothing is working well.

Tx error in 2.4Ghz is 31% and in 5Ghz it's 8% which is IMHO also too high. Video chat is not working proberly.

Rx error in 2.4Ghz is 7.3% and in 5Ghz it's 1,1%

What I tried so far: Scanning channels and changing them to from 1 to 6 to 11 to 12. Nothing helps so far and I don't know what to do. It's a quite busy neighbourhood but with products from AVM or Ubiquiti this problem never happend before (had AVM before and tested U6-Pro against EAP660 - coverage of the EAP was better, but well packet loss is horrible..).

Setup looks like this:

- 1x SSID only 5Ghz, transmit power High, VLAN10, Channel Util 8%

- 1x SSID only 2,4Ghz, transmit power medium, VLAN20, Channel Util 54%

- round about 12-15 clients (9 in 2.4Ghz 3-5 in 5Ghz)

I don't know what I can do. Bandwith is quite okay but the packet loss makes important things like videos calls and simple streaming music unusable and soon the "stakeholder" (family...) will through me (and the eap 660) out of the window...

2.4Ghz

5Ghz: