Nikolay Borisov <n.borisov.lkml@xxxxxxxxx> writes: > (Please CC as I'm not subscribed) > > Hello, > > I have the tp-link tl-wn822N usb wifi dongle. lsbusb reports it as > > Bus 001 Device 003: ID 2357:0108 > > Unfortunately with the in-kernel rtl8xxxu driver I don't get very good > results: > > wifi1 IEEE 802.11 ESSID:"HOME" > Mode:Managed Frequency:2.462 GHz Access Point: > 30:B5:C2:75:A4:CD > Bit Rate=1 Mb/s Tx-Power=20 dBm > Retry short limit:7 RTS thr=2347 B Fragment thr:off > Power Management:off > Link Quality=26/70 Signal level=-84 dBm > Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0 > Tx excessive retries:0 Invalid misc:165 Missed beacon:0 > > > At the same time if I use an out of tree driver acquired from github: > https://github.com/Mange/rtl8192eu-linux-driver I get the following: > > wifi1 IEEE 802.11bgn ESSID:"HOME" Nickname:"<WIFI@REALTEK>" > Mode:Managed Frequency:2.462 GHz Access Point: > 30:B5:C2:75:A4:CD > Bit Rate:144.4 Mb/s Sensitivity:0/0 > Retry:off RTS thr:off Fragment thr:off > Power Management:off > Link Quality=81/100 Signal level=100/100 Noise level=0/100 > Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0 > Tx excessive retries:0 Invalid misc:0 Missed beacon:0 > > Clearly this is a software problem of the in-kernel driver. iwconfig is old and not really properly supported anymore. Instead use iw and specifically 'iw wlan0 link' to check the transmit rate. And then testing speed it's best to use tools like iperf to verify the real speed, not just rely on what tools report. -- Kalle Valo
