I've just replaced Windows 8 on a HP Envy notebook with Ubuntu 12.04 and whereas before, the wireless LED on F12 would be blue to connect with wireless networks, it's now permanently red (not working) and in the Networks tab under System Settings, there is no reference to any sort of ability to connect to a wireless network - as well as wlan0 not existing when I type 'iwconfig' into the command line.
lo no wireless extensions.
eth1 no wireless extensions.
ra0 Ralink STA
Link Quality:0 Signal level:0 Noise level:0 Rx invalid nwid:0 invalid crypt:0 invalid misc:0
eth0 no wireless extensions
stefanija@stefanija-HP-ENVY-Sleekbook-6-PC:~$ ifconfig wlan0 up wlan0: ERROR while getting interface flags: No such device
I've researched similar issues and followed advice from this tutorial in order to make a suitable driver for RT3290. (as that's appropriate for my wireless card) I then rebooted and checked in the additional drivers to see if it had worked (as the computer still wasn't showing any wireless networks) and the driver was there, was active and in use, but still wasn't picking up any connections.
I also tried this tutorial, however, I couldn't get past opening the file with the archive manager because the system hit an internal error and refused to extract it as an .exe.
I'd be extremely grateful if someone could tell me what happened or how I can fix this, and apologies if I haven't been very specific or posted this in the wrong place, or asked something stupid; I'm quite new to Ubuntu and the forums, heh, so if I've missed parts out or anything, please let me know.