Can't connect to wifi after software update on ubuntu 12.10. Additional drivers says it is working. BCM4312

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http://askubuntu.com – I'm new to Linux and just installed Ubuntu last night as a dual boot with Windows 7. When I first installed it using USB the WiFi worked. Then I figured out how to use the Software Updater and updated it, downloading about 200 MB of updates. Then the WiFi stopped working. For the record, I've seen numerous threads about this same topic and have tried basically everything they have said to try. Finally a little while ago my wifi indicator/switch on my laptop is on after one of the codes I put in terminal, but still no wifi connection showing up. Additional Drivers says the driver is working (HowTos)