Late 2010 MacBook Pro Cannot Connect to Internet

Hello, First time posting a question here.

I have a late 2010 Macbook Pro 15" i5, 2.4Ghz, currently running 10.6.8. At my apartment the provided wifi has been spotty for several months. In the past I have been able to turn off my airport using the dock at the top of my screen, wait a little while (30 seconds or so) and turn it back on. I would get wifi back and then be able to resume to use the Internet.

Recently, however, I have been having extreme issues with connectivity. I will see full bars on the airport display but my dropbox icon (what I use to test connectivity real quick) will keep indicating that I am not connected to the internet. For the past week I was able to get internet with an ethernet cable plugged into the router, ONLY if my airport was turned off.

Now I cannot even get internet through the ethernet cable.

Here are some things I have been able to eliminate.

Bad computer hardware - My computer instantly connects to the wifi at my family home, on campus and where ever I have ever been. I get reliable, un-interupted internet connectivity.

Bad Wifi signal - All other devices (including the ipad I am writing this on) connect immediately to the wifi with no problems with connectivity.

About my computer:

OS: 10.6.8

CPU: intel i5 2.4 GHz

Memory: 4Gb 1067 MHz DDR3

About my Router:

Ubee DWW365 Wireless Cable Modem

ISP: Charter

I have indeed rebooted my router, but not luck yet.