Comment # 2 on bug 963920 from Larry Finger

Knowing the number of interfering APs would be useful; however, knowing how
many of them are interfering might be more useful. Use

iwlist scan 2>/dev/null | grep -C1 Channel

as the command and indicate which AP is the one with which you are connecting.

I do not have an Intel 7265, but my 7260 does not drop any packets and is
achieving rates of 92 Mbps for RX and 67 Mbps for TX. Clearly 802.11u rates are
in effect.

Your dmesg output indicates the version of the firmware, but not the file name.
The latest versions are iwlwifi-7265-16.ucode and iwlwifi-7265D-16.ucode. I
think you have a 7265 rather than a 7265D. In any case, use 'ls
/lib/firmware/iwlwifi-7265*' to see what versions are available on your
machine.