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Fun with a rebelious wireless usb device


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#1 Crazy49er

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Posted 28 March 2011 - 05:38 PM

So I've decided to give Ubuntu a try and I've had a few issues, most of which have been resolved so far. We'll just refer to them as growing pains.

However I have one very nagging issue that is just putting a hex on the whole damned plan. And I've yet to resolve it. So I figured I'd post about it and see what the think tank can come up with.

I currently have a Desktop PC that is using Windows 7 64bit on 1 hard drive, and Ubuntu 10.10 64bit on a second hard drive. I'm not physically plugged into a wired connection, I'm using a Belkin Wireless usb adapter f5d8053 v4 and it will work as soon as Ubuntu 10.10 boots up and I can see the UI. However after a few moments the connection will cut out and be unable to find itself unless I disconnect the USB adaptor and reconnect it by plugging it back in. And this will go on indefinitely where I keep having to unplug, and replug over and over ... sometimes after a couple minutes, sometimes after 20 minutes but it makes things hard to deal with if I don't know how to fix it or have the ability to browse online for solutions.

I tried a few fixes that I found online but none of which were successful, I've managed to download several network related updates via the update manager by simply starting a handful of small updates at a time and getting them to install before the wireless cuts out, unplug, replug, and let the download resume. However none of them have fixed the issue.

Ideas?

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#2 Crazy49er

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Posted 28 March 2011 - 06:46 PM

Cross your fingers and toes for me, I just found a thread and it had a fairly detailed fix for belkin USB that I hadn't seen before. I attempted the one 3 posts down and so far my wireless has stayed stable for 10 minutes and the speed went from 10mb/s to 54mb/s .. I've been able to do all the needed downloads for ubuntu. This may have worked...

#3 myrti

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Posted 28 March 2011 - 08:11 PM

Heyam

happy to hear that you solved your problem! :)

Could you maybe share the link you used to sovle the problem so that future people with the same problem can find it more easily. Thanks!

regards myrti

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#4 Crazy49er

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Posted 28 March 2011 - 08:56 PM

Hey, sorry I meant to link it in the previous reply but I guess I forgot to.

http://ubuntuforums.org/showthread.php?t=1382798 I simply followed the steps that were outlined by "ljerabek" and tested to see what drivers were on the OS to begin with.

This Fix works for Belkin Wireless USB F5D8053 ver 4001

Input:
sudo find /* -name "rt28[67]*"

Output:
kernel/drivers/staging/rt2860/rt2860sta.ko
kernel/drivers/staging/rt2870/rt2870sta.ko

This tested to see if the correct drivers were installed. (They were)

Input:
sudo find /* -name "rt28[67]*"

Output:
/lib/firmware/rt2860.bin
/lib/firmware/rt2870.bin
/lib/modules/2.6.35-22-generic/kernel/drivers/staging/rt2860
/lib/modules/2.6.35-22-generic/kernel/drivers/staging/rt2860/rt2860sta.ko
/lib/modules/2.6.35-22-generic/kernel/drivers/staging/rt2870
/lib/modules/2.6.35-22-generic/kernel/drivers/staging/rt2870/rt2870sta.ko
/lib/modules/2.6.35-22-generic/kernel/drivers/staging/rt2860
/lib/modules/2.6.35-22-generic/kernel/drivers/staging/rt2860/rt2860sta.ko
/lib/modules/2.6.35-22-generic/kernel/drivers/staging/rt2870
/lib/modules/2.6.35-22-generic/kernel/drivers/staging/rt2870/rt2870sta.ko
/usr/src/linux-headers-2.6.35-22/drivers/staging/rt2860
/usr/src/linux-headers-2.6.35-22/drivers/staging/rt2870
/usr/src/linux-headers-2.6.35-22-generic/include/config/rt2860.h
/usr/src/linux-headers-2.6.35-22-generic/include/config/rt2870.h


I guess this tells me that the correct drivers were already on the hard drive and I didn't have a need to install them. I just had to point the hardware in the right direction.


I kinda skipped ahead a bit since the drivers were already installed but I then tested to see which drivers the Belkin was using

Input:
sudo lsmod | grep rt28*

And I saw that it was using some from "rt2800usb" and according to the thread those were the wrong ones. So the next step was to "blacklist" that particular driver and force the usb to use the other ones.

Input:
sudo gedit /etc/modprobe.d/blacklist.conf

A text document will pop up with all the blacklisted drivers on the machine, I just scrolled all the way to the bottom and added:

blacklist rt2800usb


to the end of the page, saved the file and restarted the machine. Working for over 2 hours now... either its fixed or this is an all time record.

Edited by Crazy49er, 28 March 2011 - 08:58 PM.


#5 myrti

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Posted 29 March 2011 - 04:13 AM

Happy to hear! :)

Thanks for the very detailed reply! :thumbup2:

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