Review your favorite Linux distribution.
Go Back > Forums > Linux Forums > Linux - Networking > Linux - Wireless Networking
User Name
Linux - Wireless Networking This forum is for the discussion of wireless networking in Linux.


  Search this Thread
Old 10-01-2007, 03:34 AM   #1
LQ Newbie
Registered: Oct 2007
Distribution: Gentoo
Posts: 2

Rep: Reputation: 0
Unhappy ndiswrapper + 3COM usb wireless dies after some time

Ok here's the deal.

I'm setting up a mythtv box in a remote location of my home (read: wireless is preferable). Now, the wireless is causing my some problems.

first, my setup:
Via mini-itx, with EZRA (C3) processor
Hauppauge pvr-350
3com office connect 11g usb wireless card (listed as functioning with ndiswrapper)
some generic dvd-reader

The problem is as follows
booting my gentoo kernel (2.6.22-r8) is no problem with the wireless + ndiswrapper. This means that I get a connection to my router and have internet access. However, after some period of time, say 30 min, the connection fails.

This is not a power save issue, since I have disabled all these functions.

Several issues may be related:
ndiswrapper -l
only gives me
3c254g72 installed
, but should list the device as well (according to the installation instructions).

* I can never unload the ndiswrapper module with
even before the network goes down. This causes a kernel crash.

* I have posts of USB disconnect in my dmesg. which is followed by ndiswrapper errors:
usb 1-3: USB disconnect, address 2
ndiswrapper (mp_reset:62): wlan0 is being reset
ndiswrapper (wrap_cancel_urb:91): unlink failed: -19
ndiswrapper (wrap_cancel_irp:272): urb cd69a3e0 can't be canceld: 3
* Finally (this may not be related at all), my router does not list the wireless device at all in my dhcp listings. I get an IP address from it though. Now this is really weird: If I enter a static IP address to give the wireless card, the router hands out the first address available (ignoring the MAC-IP rule I've created) and then lists the wireless card as connected to the router, but lists the wrong IP address. It lists the IP address matching the rule instead of the address given.

Prior to the usb disconnect there are no errors in either iwconfig or ifconfig.

So, should I use the ndiswrapper mail-list instead of this forum? I posted here since there might be someone who knows that I'm barking up the wrong tree and the issue is related to something completely different than ndiswrapper.

Does anyone have any pointers?

I'm not a complete noob to linux, but frankly this problem has got me stumped. It gets a bit tiresome to reboot and resume emerge tasks every now and then.

Old 10-03-2007, 12:24 PM   #2
Senior Member
Registered: Apr 2005
Location: Penguin land, with apple, no gates
Distribution: SlackWare > Debian testing woody(32) sarge etch lenny squeeze(+64) wheezy jessie stretch buster
Posts: 1,621

Rep: Reputation: 98

Is there any other devices connected via USB? If so, it it alive when your 3com dies?

Happy Penguins!
Old 10-04-2007, 02:03 AM   #3
LQ Newbie
Registered: Oct 2007
Distribution: Gentoo
Posts: 2

Original Poster
Rep: Reputation: 0
Nope, no other devices. Could try that though.

However, I've scanned the forum at and others have experienced the same problem; with other hardware too.

I'll now focusing on that forum instead.

I may post a solution if I find any. It doesn't look promising though, loading the ndiswrapper with debug enabled crashes the system completely.

thanks anyways.


3com, connect, networking, office, usb, wireless

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is Off
HTML code is Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
Onboard 3Com 3C940 dies after 60 packets lucidity Linux - Hardware 0 04-26-2007 09:06 AM
3com wireless usb adapter installation help windowlicker Linux - Wireless Networking 4 07-19-2006 11:09 AM
Red Hat 9 and Wireless 3Com OfficeConnect USB zillah Linux - Wireless Networking 21 12-21-2005 07:07 AM
3com usb wireless adapter trumpet_tom Linux - Wireless Networking 2 12-24-2004 10:14 AM
3com 3crshew696 wireless usb adapter randomtask Linux - Hardware 0 10-22-2004 11:55 PM > Forums > Linux Forums > Linux - Networking > Linux - Wireless Networking

All times are GMT -5. The time now is 08:26 PM.

Main Menu
Write for LQ is looking for people interested in writing Editorials, Articles, Reviews, and more. If you'd like to contribute content, let us know.
Main Menu
RSS1  Latest Threads
RSS1  LQ News
Twitter: @linuxquestions
Facebook: linuxquestions Google+: linuxquestions
Open Source Consulting | Domain Registration