Performance degradation over time

[Michal Kazior]

On 9 March 2016 at 03:01, Matthew Keeler <mjkeeler7 at gmail.com> wrote:
>
> So with the most recent firmware I am experiencing different performance issues. First, the latest firmware after coming up does significantly less than it used to. For 2.4 GHz where before it would do ~50Mbps it now can only average ~30Mbps (the rate is sporadic though anywhere from 10Mbps to 40Mbps) and this is about 3 inches away from my antennas on an unused channel. Secondly sometimes I have seen it drop down to < .1 Mbps. I grabbed the fw_stats. One thing that seems drastically different between my 2.4 Ghz and my 5 Ghz is that 2.4 has extremely high error counts where my 5 GHz is < 400. Could this be a symptom of misconfiguration or more firmware issues?

The only thing that comes to mind is that this could be related to
(mis)calibration.

Does your card contain calibration in EEPROM or is it out-of-band? Do
note: many cards found in routers have out-of-band cal data. If it's
in EEPROM this could be either a quirk in board.bin or otp.bin (which
is embedded in the firmware blob). You could try experimenting with
different firmware versions (including 10.1.467) to see if it changes
much.


Michał