View Full Version : [ubuntu] Wireless adaptor speed too slow

November 15th, 2009, 12:08 AM
I have just upgraded my wireless router from a Linksys WRT 45 G to a D-Link DIR-655
Xtreme N Gigabit router. Comcast has upgraded our donload speeds and both our Toshiba Satellite (Vista) and MSI netbook (XP) that are wireless n equipped are indicating download speeds on the order of 10-20 Mbits/sec (upload around 3 Mbits/sec).However I have added a D-link Xtreme N Desktop adaptor DWA-552 to my Dell Dimension 3000 (Ubuntu 9.04) and the download speeds are consistenly less than the upload speeds (using same speed test site on all 3 machines). Any suggestions on what might cause this problem?

November 23rd, 2009, 10:58 PM
The problem is due to the native driver installed by UBUNTU (ath9k).
I installed a windows driver using ndiswrapper and now the download speeds are greater than the upload speeds (as on our other two windows OS machines with n cards) and both much greater than with the ath9k driver. However ndiswrapper installed a g driver instead of the n driver (probably becasue the D-Link 552 adaptor is so new). Any way I hope this saves others the waste of time.