Wi-Fi only works when I'm near it?

I have recently gotten a new iPhone 4 and stated noticing that when I go into my room it drops signal. I tried other devices and phones and it's only my phone that does it when I go into my room my sisters works fine in the same room. Why is it doing that and what can I do to fix it?

It's very easy to fix that. Get settings>General>Reset>Reset Network Settings. This should mostly fix your issue.

This one so effective way which vijay include.

  • Will robots live among humans in the near future? I think it's all a bit scary, even now, with the new iPhone 5S, having a finger print lock, Now the government can easily access even more of our information, including our fingerprints? I guess I'm asking two questions lol.
  • Why is there a blue star near my contacts phone number on my iPhone? I recently tried calling one of my contacts and the calls go straight to "this person can't receive calls at this time we're sorry for any inconvenience this may have caused". I checked my other contacts and none have a star near the phone number. Does anyone know what that little blue star means? (For iPhone 5)
  • Where can I buy an Iphone 5 near DORAL Miami, FL? I want to know where to buy and Iphone 5 near Doral, Miami FL, but I have an issue. I live in Central America and I wanted to know where to buy this iphone factory unlocked or device only. Also, many persons have told me that it is really hard to find this phone because it runs out of store really fast. Can you tell me if this is true? If so, where can I buy it that it may be available at 6 p.m?
  • Navigation icon near battery? Basically an on iPhone 3GS, near my battery icon there's a arrow looking icon lot slanted to the right, am guessing that's the navigation icon, can someone tell me how to switch that off or take it off? Would be most helpful