[SOLVED] trouble with wifi connection on ubuntu 11.04
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Have installed Ubuntu 11.04 on my Toshiba Satellite A100-250 laptop.
Had to choose Ubuntu Classic on startup since Unity apparently was not supported by the hardware.After doing so it performed good.
However, connecting via the built in wireless adapter proved shaky. Some sites loaded fast, while others took considerable time or even did not load at all.
Adapter is Atheros ARC 2413 802.11bg NIC (rev. 01)
Connecting to the router via a cable is problem-less, all sites load quickly and look fine.
Is there a known solution to this problem ?
Last edited by stuartjohn; 06-30-2011 at 07:01 AM.
Welcome to LQ. You might want to look in the networking and hardware forums for some additional solutions. If you haven't been there yet, there is also ubuntuforums and it has an upgrade and installation section. I have been hearing of a lot of problems with Ubuntu 11.04 and wireless, though I haven't heard of any explanations. It had been my experience that since about Ubuntu 9.04 that wireless pretty much worked out of the box. Here are a couple of other suggestions:
1) Look to see what driver is recommended for your system. The big names seem to be atheros and madwifi. One of those will probably support you. Then see which one you are using (use sudo lspci) and verify that it is the right one. If not, you should be able to find the correct driver and some installation instructions, which usually include "blacklisting" the default driver to avoid conflict.
2) In Ubunut, it seems that they often times have what are called wireless backport modules. I had some problems with wireless disconnecting all the time and I installed these and it cleared it up. You will need to install them through Synaptic as they aren't installed by default
Noway2 hit the nail on the head about the drivers; Can you provide us with the output of the following command?
It is definitely a driver issue; I just need to know which one is being used, and I can go from there.
To add one extra thing to that - I use compat-wireless for my drivers, since they are always being worked on, and to me personally, it is more centralized, and easy to follow the source tree. I'm not saying to straight up use compat-wireless, but going along that trail, you could always compile a specific type of driver for your device, especially if you want to just try it out. Now that being said, I do recommend installing the latest version of drivers for your device. Hence, that's why I want the output of lsmod so I can help you out with that part.
According to the output, your using the ath5k. The lists show that the ath5k supports the 2413. As I mentioned, there have been a lot of reports with Ubuntu 11.04 and wireless problems. Corp769 really seems to know what they are doing and may be able to provide you with better assistance than I can. In the mean time have a look at the links shown here: http://lmgtfy.com/?q=2413+802.11bg+linux+ubuntu+11.04 Yes, that is the "let me google that for you" link. I am not using that to try to be rude, please don't be offended. It used it so that you could duplicate the search that I performed that seems to have a good mix of potential answers as well as confirmation from Launchpad of what the bug is.
Can you also post the output of lspci for me? I forgot to ask that before, I want to match the vendor ID for the exact device you have. Once I have that, I will be able to lead you in the right direction that you need to take in order to get it going again.
As seen here - https://bugs.launchpad.net/ubuntu/+s...ux/+bug/568090 - Try using your drivers with the nohwcrypt option and see if it helps, as this is a known problem with your drivers. Let me know if it works out for you, since I read that it might or might not work.
Relatively new-ish to Ubuntu and Linux systems. I just upgraded from 10.10 LTS (lucid) to 11.04 Natty (complete re-partition from scratch- so no leftovers). Now I have some pretty serious problems with NATTY 's wifi
1. I could not signal in the rooms I was getting wifi signal previously with 10.10 LTS. I rummaged around the forums and the internet a lot. Tried several things but nothing worked.
2. So I resigned myself to using the laptop in the same room as my wifi router (pointless tho). Now yesterday after downloading some files overnight. I switched it on and it will not connect to the router at all & not even the wired connection.
PLEASE HELP ME.. From my 2 weeks of reading and re-reading on the net about wifi & natty . I have put in the outputs of lspci & lsmod commands