My iPhone 5 keeps losing Wi-Fi and has no service?

I got my iPhone 5 almost two months ago and I love it! I've always been happy with apple products until just this Saturday I was at my aunts house where you get no service and when I got back to my house I still had no service and could barely get Wi-Fi. I had then gone to my aunts house where I only got Wi-Fi if I moved close to my router. I'm so upset with this. Is there a fix? I really don't want to get a new iPhone

What I do is just go to settings and go to Wi-Fi then it comes right bak up. You might need to put your info in again though

Did you reboot the phone yet? (HINT!)

if you still have Wi-Fi issues, turn off the iphone. Reboot the the router. Let it gain sync again. Turn on Iphone. Work now?

IF you still have Wi-Fi issues, but only at home, everywhere else is fine, then you need a new router. Call your ISP.

If you have Wi-Fi issues with any router you connect to, home, McDonalds, BK, Library, School airport, etc etc etc… Then you may need to do a restoral on itunes… Further issues beyond that require AppleCare at 800-myiphone

From professional experience with Iphones and Androids… The #1 culprit is ALWAYS the wireless router… Its settings… And its firewalls… Only your ISP can help you with that.

Go to Wi-Fi in settings click on the! In a circle next to your network at the bottom click renew lease