Wifi throughput


I’m running latest updates of SLES on my RasPi. However, Wifi throughput seems to be quite slow. When running an update with zypper the DL speed is somewhere between 50-150KB/sec (I have a 120MBit internet connection). Also, when copying a file from another computer via scp to the Pi, the speed is around 200KB/sec and after transferring 5-10MB the connection is terminated and the copy aborts.

Is this a known issue?


I see the same, but it’s not dropping the scp connection like you see,
what sort of signal/connection are you getting? Also try turning off
the power management as well;

iwconfig wlan0 power off

iwconfig wlan0
wlan0     IEEE 802.11bgn  ESSID:"my-ssid"
Mode:Managed  Frequency:2.442 GHz  Access Point:
Bit Rate=65 Mb/s   Tx-Power=31 dBm
Retry short limit:7   RTS thr:off   Fragment thr:off
Encryption key:off
Power Management:off <------
Link Quality=70/70  Signal level=-39 dBm
Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
Tx excessive retries:0  Invalid misc:0   Missed beacon:0

My Bit Rate does go to 72.2Mb/s, that depends on the wireless router
itself and the Bandwidth (40 or 20MHz) and Sideband (Upper or Lower)

If I follow the log (journalctl -f) I do see some errors;

brcmfmac: brcmf_sdio_hdparse: seq XXX: sequence number error, expect YYY

Cheers Malcolm °¿° SUSE Knowledge Partner (Linux Counter #276890)
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