Dell Inspiron 6400 wifi won't work

[gold_finger]

I ended up connecting to Ethernet and running the following commands on my fresh install.
They are different than my previous posts, probably due to the changes in the linux packages, but I am a noob so I really don't know how or why this worked.

Good job finding and using that Ubuntu post to fix wifi!

It worked because the "lspci" command identified the exact model and revision # of your card, which allowed you to pick the correct driver to use from the grid list on that post.  Not all Broadcom cards use the same driver and proper identification of the model and revision #'s is the key to installing the right one.

Once proper driver package is determined, it can be installed using a terminal command (like you did), or by finding and installing it using the Synaptic Package Manger as noted by firenice03.

P.s.
Sometimes the Driver Manager (or Install Drivers) program doesn't install the correct Broadcom driver, so the safest bet is to do what you did following that Ubuntu post.

[firenice03]

P.s.
Sometimes the Driver Manager (or Install Drivers) program doesn't install the correct Broadcom driver, so the safest bet is to do what you did following that Ubuntu post.

Thanks gold_finger, making a note of that too