...an important fix you need to do just happens to be an easy one?
Just recently Windows 7 on my laptop was having trouble connecting to my wireless router, even though it said it could see the signal. Well, since it's a dual-band model, I just switched it from 2.4 to 5.0 GHz, and what do you know! Now it works fine and connects with no problem.
Sure, we feel like throwing our hardware off of the top of tall buildings sometimes. Don't give in! Stick to it, and (most) of your technical problems can be solved.