Wi-Fi on iPhone 4S not connecting?

I have the iPhone 4S and I've had it for about 11 months. I don't keep up with downloading software and things, but I decided today would be a good day to get some new music and maybe get iOS 6.0.1. However, I tried connecting to my houses Wi-Fi and it would have the little turning circle and say it was connected, but it would still say it was using 3G. I tried restarting my phone, but nothing is working.

Get into settings and turn Wi-Fi back on.

I have the 4S too and the Wi-Fi hardly ever works the first time. I just keep trying to connect and eventually it turns on. My laptop has a Wi-Fi hookup, so I use that as my source, and even if my phone is right near it, it will still go back to 4G. But if I try to connect it it a few times, it will connect.

Just connect and disconnect until you get it. It takes me about 5-9 tries before I get Wi-Fi to work.

Assuming that Wi-Fi is turned on and finds the SSID or your wireless router (or modem router), you have to find out what security key or password your router uses for Wi-Fi. I don't know what default security it tries when you simply enter a password, but if your router uses WEP security you could first try http://www.ehow.com/...e-wep.html

I had been trying everything to connect my boss' iphone 4S to our office Wi-Fi with 128-bit WEP key without success, but I was not aware of trying the $ sign prefix that I just found in that link.

Otherwise to select a specific security method go to Setup > Wi-Fi > Other, select the security type (like WEP) enter the ESSID of your router and password or security key and then Join.

That is what worked for my boss at home (64-bit WEP key with all digits). That did not work at the office when 128-bit WEP key is hexidecimal (0-9, a-f) (tried captial and small letters). But I did not know to try the $ prefix at the time, so I will not be able to confirm if that works until he returns from vacation in a week. Maybe the iphone does not know to try a hex WEP key as a key instead of a password without the $ prefix.

If you have a mac address to get into your internet you got to set it up so you can use it.