About Toshiba cannot connect to Wireless network

I have a Toshiba Portege Z935-P300 and I have had no problems connecting to the internet until about 2 days ago. My computer detects the home wireless network but states that it was unable to connect. All other computers, tablets, cell phones in the house can connect with no problem. When I tried to connect to the internet with an ethernet cable, it worked just fine. I'm not sure if this is related but this happened at about the same time as my roommate got an Xbox and started using it. He can connect just fine too. I have already run IPCONFIG /ALL. Results are below: Microsoft Windows [Version 6.1.7601] Copyright (c) 2009 Microsoft Corporation. All rights reserved. C:\Users\Kristina Martinez>ipconfig /all Windows IP Configuration finally. we use szelins 3g router to check. it is ok!