Ask Ubuntu is a question and answer site for Ubuntu users and developers. It's 100% free.

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

After upgrading to 12.04 LTS, I am seeing TX errors popping up in ifconfig. I am using a Broadcom4313 wlan controller.

The command lsmod | grep wl gives:

wl 2646601 0
lib80211 14040 2 lib80211_crypt_tkip,wl

The wlan is connected but the speed is less than 10 KBps. The nm-tool reports:

Speed:   1Mb/s

But my net connection is 15Mbps !!!

share|improve this question
you're aware Mbps != MBps right? 15 Mbps (Mega Bits) is about 1.87500 MBps (Mega Bytes). As for the Kilobytes issue, wifi'll always be slower than direct-wire connection. You may want to also know certain sites have slow upload speeds so you get slow download there. What "TX" errors are you referring to? – Thomas W. Nov 22 '12 at 17:15
How far are you from the access point? Are there any obstructions, like walls, between your computer and it? – taneli Nov 27 '12 at 6:26

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Browse other questions tagged or ask your own question.