AP 3805i icmp high value

[Giuseppe_Montan]

Good Morning, we have lots AP3805i and the customer notified me that the icmp from lan network to ASCOM i62 phone near the access points is to high.
I have -40dbm value on the phone ( i am at 2 mt from Acces Point )
The power is dynamic and the channel is fixed

[Giuseppe_Montan]

[Giuseppe_Montan]

The APs are set to g/n and we try to set b/g/n or b/g only but nothing changed.
I will disable U-Aps on a controller and phones.

[Ronald_Dvorak]

Please turn off U-APSD on all phones.

And why is the phone set to 802.11bg instead of 802.11bgn OR is the AP set to bg only ?

[Ronald_Dvorak]

Could you post the phone config..

i.e.