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I have a TP-LINK TL-WN722N wi-fi adapter, and I suffer from bad connection quality on ubuntu. Dowload speeds may vary from 3 MB/s down to 40 kB/s, ping is unstable and online games are unplayable. On windows it works flawlessly. Any ideas, what may cause the problem?

Anwar
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Dmitry Avgustis
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  • is your router configured for wireless `N`? What is your wifi device in laptop (`sudo lshw -c network`) – Web-E Apr 19 '14 at 17:59
  • configuration: broadcast=yes driver=ath9k_htc driverversion=3.13.0-24-generic firmware=1.3 ip=192.168.0.104 link=yes multicast=yes wireless=IEEE 802.11bgn It runs on N mode, wifi hotspot is on bgn mode. Anyway same config on windows works perfectly, but on ubuntu not – Dmitry Avgustis Apr 19 '14 at 18:04
  • Try this - [atheros wireless ar9285 driver](http://askubuntu.com/a/334250) , Please change the driver name from `ath9k` to `ath9k_htc` in above steps. (If those steps doesn't work, use `sudo rm /etc/modprobe.d/ath9k_htc.conf` and reboot to revert the changes) – Web-E Apr 19 '14 at 18:19
  • Tried this, didn't help unfortunately. I've also tried to download the latest .fw files from kernel web site for my adapter. They didn't help as well. I guess I'll have to give up on linux for a while unless I buy a new adapter – Dmitry Avgustis Apr 19 '14 at 19:38
  • Try disabling n mode in router – Web-E Apr 20 '14 at 04:30
  • Tried this as well, no luck. I think it's an issue which should be reported, but I have no idea where to report. And BTW, I really appreciate your help, thanks. – Dmitry Avgustis Apr 20 '14 at 08:32

1 Answers1

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Found a workaround, I used Windows Wireless Drivers tool

sudo apt-get install ndisgtk

I used windows XP x64 driver, works fine.

Zanna
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Dmitry Avgustis
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