Wifi not working with Intel/PRO Wireless 3945ABG

[metalxer]

Okay, I had a little time on my hands and installed new Xubuntu alongside this one..and I'm really really sorry but it seems it was just me who was really stupid - while installing the first one I just clicked next when it asked me if I want to install third-party software for graphics, wifi, etc. (default option was 'no'). And now when I was installing new Xubuntu alongside the old one, it dawned on me and I checked this option, and now everything works flawlessly.
Again, sorry for bothering, but at least if someone has the same problem they know what was wrong.
Thanks for your time!

[chili555]

Glad it's working by whatever means. Have fun!

[jeremy31]

I actually think there was an issue when Ubuntu installed the 4.15.0-30 kernel and for some reason skipped the linux-modules-extra package install due to some error as this does happen once in a while

linux-modules-4.15.0-30-generic contains the tg3 module to support your ethernet but linux-modules-extra-4.15.0-30-generic has the iwl3945