Wifi stopped working when 8.10 installed

I would try, temporarily, to see if you can connect by taking your wireless AP and turning WEP off. Also there are options for the type of WEP code being used... make sure you select the correct one.

Thanks, but I still have no joy with the wifi. I turned WEP off at the router. Network Manager notices and now creates an entry with security set to none. It still fails to connect, Hovering the mouse over the network manager icon shows "Requesting a network address from the wireless network "Underhill""... Then it displays the "Disconnected" message.

I know the router is ok as I can connect with computers running Linpus and XP.

So, it is not getting an IP address... I will try to do some research on the subject later today... but that is what is happening if it helps you.

The computer is not getting a DHCP address from the wireless AP.

The only idea I have off the top of my head is to make sure that there are available IPs for the device (some people limit the number of IPs available via DHCP, but this is rare)

I did check there were free IPs. The router has a limit of 16 but at thge time only 4 were in use. I have successfully got it to allocate up to 8 since by connecting other kit. I have retried the MA401 card but still cannot get it to work with Ubunt. The same card works ok on an XP machine

Can you post the results of the following commands:

lspci

here is the result:-
dai@dai-laptop:~$ lspci
00:00.0 Host bridge: Intel Corporation 82830 830 Chipset Host Bridge (rev 04)
00:01.0 PCI bridge: Intel Corporation 82830 830 Chipset AGP Bridge (rev 04)
00:1d.0 USB Controller: Intel Corporation 82801CA/CAM USB Controller #1 (rev 02)
00:1d.1 USB Controller: Intel Corporation 82801CA/CAM USB Controller #2 (rev 02)
00:1d.2 USB Controller: Intel Corporation 82801CA/CAM USB Controller #3 (rev 02)
00:1e.0 PCI bridge: Intel Corporation 82801 Mobile PCI Bridge (rev 42)
00:1f.0 ISA bridge: Intel Corporation 82801CAM ISA Bridge (LPC) (rev 02)
00:1f.1 IDE interface: Intel Corporation 82801CAM IDE U100 Controller (rev 02)
00:1f.5 Multimedia audio controller: Intel Corporation 82801CA/CAM AC'97 Audio Controller (rev 02)
00:1f.6 Modem: Intel Corporation 82801CA/CAM AC'97 Modem Controller (rev 02)
01:00.0 VGA compatible controller: ATI Technologies Inc Radeon Mobility M6 LY
02:00.0 Ethernet controller: 3Com Corporation 3c905C-TX/TX-M [Tornado] (rev 78)
02:01.0 CardBus bridge: Texas Instruments PCI1420 PC card Cardbus Controller
02:01.1 CardBus bridge: Texas Instruments PCI1420 PC card Cardbus Controller
02:08.0 Ethernet controller: 3Com Corporation 3c905C-TX/TX-M [Tornado] (rev 6c)
dai@dai-laptop:~$

I notice that the MA401 is not apparent in the list above. is there another command for listing PCMCIA devices? I see there is and the output is:-
dai@dai-laptop:~$ lspcmcia
Socket 0 Bridge: [yenta_cardbus] (bus ID: 0000:02:01.0)
Socket 0 Device 0: [hostap_cs] (bus ID: 0.0)
Socket 1 Bridge: [yenta_cardbus] (bus ID: 0000:02:01.1)
dai@dai-laptop:~$

If that does not work... then try changing the blacklist as follows:

gksu gedit /etc/modprobe.d/blacklist

* remove:
blacklist hostap
blacklist hostap_cs
blacklist hostap_pci

* add:
# possible coflict with hostap drivers
blacklist hermes
blacklist orinoco
blacklist orinoco_pci
blacklist orinoco_cs
blacklist orinoco_plx

gksu gedit /etc/modules

remove:
orinoco_pci

Thank you. The first of your two suggestions works, that is blacklisting the hostap drivers and using orinoco. It is working well now and I am using the wireless with the MA401 to compose this response.

Thank you again. Your help is much appreciated.

Thanks PrivateVoid, that solved my question.

No problem Dave. Glad I could assist.