Hi Victor,
Only the internet using wireless is having an issue. The drop broadcast/multicast was enabled on the SSID. Interference is looking good at 0% and very little effect on other APs and the noise floor is in between -88 to -95.
Do you have any troubleshooting steps to test the internet using wireless LAN? I did the speedtest using WLAN/LAN to test the internet bandwidth and it was fine as I could the expected results. However, there were some wireless clients who are still complaining for slowness.
Jaded