I'm using a FritzBox with an Atheros AR9227 wifi chip (ath9k module). Every few seconds to RX rate drops down to 1.0 Mbit/s. Interesting is that this only seems to happen if the connection is idle. If I'm downloading something the connection is stable. Therefore my first thought was some kind of power saving, but it seems off per default.
# iw dev wlan0 get power_save
Power save: off
I'm quite clueless. Is someone experiencing similar issues with the ath9k module and has some tips to track this issue down? There are no output in the syslog/kernellog regarding the wifi when this happens.
# iw dev wlan0 station dump
Station 54:67:51:56:74:53 (on wlan0)
inactive time: 560 ms
rx bytes: 549755049
rx packets: 1291921
tx bytes: 16079455
tx packets: 112457
tx retries: 5370
tx failed: 0
beacon loss: 0
beacon rx: 456658
rx drop misc: 13430
signal: -47 [-47, -57] dBm
signal avg: -49 [-49, -59] dBm
beacon signal avg: 209 dBm
tx bitrate: 130.0 MBit/s MCS 14 short GI
rx bitrate: 1.0 MBit/s
expected throughput: 44.677Mbps
authorized: yes
authenticated: yes
associated: yes
preamble: long
WMM/WME: yes
MFP: no
TDLS peer: no
DTIM period: 1
beacon interval:100
CTS protection: yes
short slot time:yes
connected time: 49319 seconds