I've just starting using Ubuntu & completed a clean install of Ubuntu 12.04.3 LTS on a Compaq nc6230 laptop with an Intel PRO/ Wireless 2200BG wireless card. After the installation, I can't connect my nc6230 (Laptop 1) to my home Wifi router (Linksys WAG200G) using WEP encryption.
I encountered the WEP connection problem immediately after the initial OS installation.
Here's a summary of the symptoms I'd encountered:
- I can enable the Wifi card by pressing the Wifi Quick Launch Button.
- Network Manager can detect & list the AP (same AP I connect to with another laptop).
- Network Manager shows it's trying to connect to the AP (blinking icon in system tray).
- On the nc6230 (Laptop 1), Network Manager will keep prompting me to key in the WEP password every few minutes.
- I'd deleted the old Wifi connection in Network Manager and create a brand-new connection. Network Manager still prompts for the WEP password.
I'd installed the same Ubuntu OS (64-bit) on another laptop (Laptop 2 - Compaq 6510b with Intel PRO/ Wireless 4965 AG or AGN [Kedron]) which can connect to the same router with the same WEP settings. NOTE: I'd encountered the similar problem with my Laptop 2 earlier on. I managed to resolve the problem after performing a clean OS reinstall and upgrade the firmware/ driver of the Intel PRO 4965 AG wireless card).
I've tried resetting Laptop 1's BIOS back to default settings (as suggested in a posting on Ubuntu Forums) but I'm still encountering the same problem.
- I could connect to the same AP when I was still running WinXP on Laptop 1.
- Since the initial installation, Laptop 1 can connect to the Internet with my Ethernet connection.
- All latest system updates've been installed & Laptop 1 successfully rebooted.
How do I resolve this problem? I've searched through the various Ubuntu forums & tried out several suggested solutions (see above) but the problem still persists. Do I need to upgrade Laptop 1's Intel 2200BG's firmware and/or driver? Where can I download the updated version of this firmware/ driver? Could this problem caused by Network Manager?
P.S.: I'd enclosed some info on Laptop 1's network h/w details.
Output for sudo lshw -c network *-network description: Ethernet interface product: NetXtreme BCM5751M Gigabit Ethernet PCI Express vendor: Broadcom Corporation physical id: 0 bus info: pci@0000:10:00.0 logical name: eth0 version: 11 serial: 00:12:79:be:ff:79 size: 100Mbit/s capacity: 1Gbit/s width: 64 bits clock: 33MHz capabilities: pm vpd msi pciexpress bus_master cap_list ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd 1000bt 1000bt-fd autonegotiation configuration: autonegotiation=on broadcast=yes driver=tg3 driverversion=3.128 duplex=full firmware=5751m-v3.29a ip=192.168.1.100 latency=0 link=yes multicast=yes port=twisted pair speed=100Mbit/s resources: irq:16 memory:c8000000-c800ffff *-network description: Wireless interface product: PRO/Wireless 2200BG [Calexico2] Network Connection vendor: Intel Corporation physical id: 4 bus info: pci@0000:02:04.0 logical name: eth1 version: 05 serial: 00:15:00:15:a9:e5 width: 32 bits clock: 33MHz capabilities: pm bus_master cap_list ethernet physical wireless configuration: broadcast=yes driver=ipw2200 driverversion=1.2.2kmprq firmware=ABG:18.104.22.168 (Dec 12 2007) latency=64 link=no maxlatency=24 mingnt=3 multicast=yes wireless=IEEE 802.11bg resources: irq:21 memory:c8100000-c8100fff enter code here Output for lspci 02:04.0 Network controller: Intel Corporation PRO/Wireless 2200BG [Calexico2] Network Connection (rev 05) 10:00.0 Ethernet controller: Broadcom Corporation NetXtreme BCM5751M Gigabit Ethernet PCI Express (rev 11) rfkill list all 0: hp-wifi: Wireless LAN Soft blocked: no Hard blocked: no 1: hp-bluetooth: Bluetooth Soft blocked: no Hard blocked: no 2: phy0: Wireless LAN Soft blocked: no Hard blocked: no 3: hci0: Bluetooth Soft blocked: no Hard blocked: no Output for nm-tools State: connected (global) - Device: eth1 ----------------------------------------------------------------- Type: 802.11 WiFi Driver: ipw2200 State: unavailable Default: no HW Address: 00:15:00:15:A9:E5 Capabilities: Wireless Properties WEP Encryption: yes WPA Encryption: yes WPA2 Encryption: yes Wireless Access Points - Device: eth0 [Wired connection 1] ------------------------------------------- Type: Wired Driver: tg3 State: connected Default: yes HW Address: 00:12:79:BE:FF:79 Capabilities: Carrier Detect: yes Speed: 100 Mb/s Wired Properties Carrier: on IPv4 Settings: Address: 192.168.1.100 Prefix: 24 (255.255.255.0) Gateway: 192.168.1.1 DNS: 22.214.171.124 DNS: 126.96.36.199 Output for iwconfig lo no wireless extensions. enter code here eth0 no wireless extensions. eth1 IEEE 802.11bg ESSID:"homebase" Mode:Managed Frequency:2.462 GHz Access Point: 00:18:39:39:81:42 Bit Rate:0 kb/s Tx-Power=20 dBm Sensitivity=8/0 Retry limit:7 RTS thr:off Fragment thr:off Power Management:off Link Quality:0 Signal level:0 Noise level:0 Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0 Tx excessive retries:0 Invalid misc:0 Missed beacon:0s Output for sudo modprobe ipw2200 No output