View Full Version : [ubuntu] IBM/Lenovo ThinkPad R51e Networking Issue

April 25th, 2009, 05:58 AM
I have a ThinkPad R51e with a Broadcom NetXtreme Fast Ethernet interface and a 11b/g Wireless LAN PCI Adapter and neither one seem to be fully recognized by Ubuntu. The ethernet port works somewhat, but I cannot connect to the Internet, or even my modem, however I can connect to my router.

I can't seem to change the address on the interface for some reason. I can make a new connection, but it is never applied. I'm just stuck with the same (/24) address when I look at the network utility in the admin menu.

When I boot into Windows, I can get connected with no issues, regardless of which interface I use.

Any suggestions/things I should know?

April 25th, 2009, 07:32 AM
There's a lot of stuff around, as wifi in particular has been a problem for Linux. Things have changed quite a bit(for wifi) in the last 8 months, so be a bit wary of old webpages.
There's a good page or two in the wiki; try https://help.ubuntu.com/community/NetworkDevices
Essentially, start with the wired connection. Wired is easier.
find a terminal, and try
ifconfig which should tell you a bit about your network.
sudo lshw -C network will also add information on the hardware, and from there you should have an idea whether it's a hardware issue, a driver problem, or a network glitch. If you need more help, post the output from the above commands back here.

April 25th, 2009, 07:38 AM
sudo ifconfig eth0 netmask up

For more info

April 25th, 2009, 05:40 PM
Alright, my ethernet interface works fully now. I don't know what was causing the problem, but it just started working for me.

Thanks for the replies. I'll keep this bookmarked in case I run into problems again.