I've upgraded an Acer Timeline 4810T to Ubuntu 11.10. Everything works fine except for the darn wireless interface (network manager).

I just tested the wireless interface over a non-encrypted signal and it works beautifully. The issue is definitely related to WEP.

Unfortunately, some of the networks I need to connect to are WEP encrypted, therefore this is a serious issue for me that is preventing me from using Ubuntu on my laptop.

This was no problem in 11.04 and prior. Is there a simple solution for this? Any suggestions?

Here's more hardware information. Hopefully this helps to debug the network issue:

sudo lshw -class network

  *-network
       description: Wireless interface
       product: Centrino Wireless-N 1000
       vendor: Intel Corporation
       physical id: 0
       bus info: pci@0000:02:00.0
       logical name: wlan0
       version: 00
       serial: 00:1e:64:3c:5e:e0
       width: 64 bits
       clock: 33MHz
       capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless
       configuration: broadcast=yes driver=iwlagn driverversion=3.0.0-13-generic-pae firmware=39.31.5.1 build 35138 latency=0 link=no multicast=yes wireless=IEEE 802.11bgn
       resources: irq:43 memory:d2400000-d2401fff

lspci

02:00.0 Network controller: Intel Corporation Centrino Wireless-N 1000

rfkill list

0: phy0: Wireless LAN
    Soft blocked: no
    Hard blocked: no
1: acer-wireless: Wireless LAN
    Soft blocked: no
    Hard blocked: no

Many thanks for your help!

I just tested the wireless interface over a non-encrypted signal and it works beautifully.

The issue is definitely related to WEP.

Unfortunately, some of the networks I need to connect to are WEP encrypted, therefore this is a serious issue for me that is preventing me from using Ubuntu on my laptop.

Any suggestions?