My Wi-Fi on my computer is not working?

I have a windows xp computer. I had Wi-Fi on this computer and it just stop showing up on my iphone about four days ago. I tried searching for it on my phone but nothing came up.

So then I went to my network connections to see if the file would be there but there isn't anything. The only thing that it has is Local Area Connection and MSN. For the MSN it says its unavailable.

Please help!

Added (1). Sorry I forgot to put that I did unconnect the router for about one minute and it still didn't work.
I also have the Wireless 6 Linkys Router and I unplugged that one as well. Still nothing though

Added (2). My Iphone connects with my Wi-Fi at home and it hasn't been doing that. I can't even find my Wi-Fi name when I put search for connections on my phone.

Headphones that came with my iPhone won't work?

I just got the iPhone 4s and it came with these headphones but when I put them in it just kept playing out loud. So I put in my own headphones and worked just fine. So my friend used the headphones that came with it on her phone (not an iPhone) and they worked! What shouldn't do to get them to work for mine?

How to get unbanned from instagram without jailbreak?

A few months ago I was banned from instagram on my iPhone, because a friend was using it in appropriately (and don't say the 'friend' was me because it wasn't).Is there any way to get unbanned? I've tried emailing them and sending in a dispute form. But they don't respond! It's really annoying because all my friends have it and I really enjoyed posting pictures up!

How to fix focal length properties for a picture taken from an iPhone?

I took several pictures on my iPhone and then put them on my computer. I went to edit these photos in Windows Live Photo Gallery which I have used before. When I tried to edit some, I had no problem. But others would give me an error notice that said "photo can't be saved due to its properties".In the properties window under the details tab the 35mm focal length section was highlighted, so I'm guessing this was the problem area. But no matter what I put in there (it only asked for numbers and I have no idea what is right) it would say it was wrong. Also in the pictures that I edited successfully, the 35mm focal length section was highlighted and empty.

I want to buy an iphone 5 but can I activate it 2 weeks after I get it?

The reason I want to order it is in case it goes out off stock before I'm due my upgrade 3rd of november, so my question is can I buy the iphone 5 contract phone then activate it two weeks after it arrives as it won't get here until 2-3 weeks anyways?

Added (1). And I'm not being an iphone 'sheep' I want the iphone 5 thanks!

Is the iPhone 5 a good upgrade for me?

Ok so I currently have a droid 2, but I have an upgrade. I have Verizon wireless currently and I was wondering if upgrading to the iPhone 5 is a good deal? Or is there a better smart phone that I can get? Androids kinda get on my nerves because they are buggy and I don't really like their app store. So should I stick with android because they have a lot of good and free apps or should I switch to apple? Oh and I have an iPad so I know how their app store works and it's ok. But I'm stuck between galaxy s 3 or apple 5 what would you recommend? If there's a better phone please list it! Lol thanks!