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