I have read multiple answers to this questions, but none of them apply to someone with no ubuntu experience. Please make suggestions as though you are speaking to someone with no knowledge. I have tried may of the things suggested and none have worked, but it could be because I am doing it incorrectly. Thanks!
I believe this is because you are having a wireless card with proprietary driver, so the driver is not installed by default after installation.
You try plugin your computer to a wired LAN. Open the