look here if you have wifi issues

[rtc05]

I had the issue I could connect to my network but not the net. The way I fixed it was I changed the DNS to the router ip adress usually 192.168.1.1

 

[jellomizer]

Well the real trick is to look at your IP Address and Subnet Mask...

The subnet masks Normally 255.255.0.0 or 255.255.255.0. So often but not always the DNS is on the first available IPAddress in that range.

For example places where i work uses a 10.0.0.0 network with a Sub Netmask to 255.255.0.0 so I use 10.0.0.1 however if you have a Linsys Routers say from vonage and it will give you a 192.168.15.x ipaddress with a subnetmask of 255.255.255.0 so you probably need to try 192.168.15.1... Still that may not be your DNS server, in reality it could be any one. even an IP Address outside of your network...

The DHCP Connections usually tells your iPhone (or computer) where the DNS server is. if not then you will need to find it and enter it in. I do think there is an issue with the iPhone if the first DNS Doesn't work then it may not fail over to the second one though.

 

[rtc05]

please note this is how to fix my issue and mayb some others this is what me and apple came up with after 4 hours of trying to fix it