I ultimately "solved" this by using a USB wireless device, then going to System >> Administration >> Hardware and downloading the missing proprietary wireless driver ("Broadcom STA wireless driver"). After a reboot my built in networking card worked fine.
I ultimately "solved" this by using a USB wireless device, then going to System >> Administration >> Hardware and downloading the missing proprietary wireless driver ("Broadcom STA wireless driver"). After a reboot my built in networking card worked fine.