I found that if you go to settings/Wi Fi/(then press the blue button on the right of the network your joined to)/Then look at the numbers to the right of "router" and put these numbers into your internet browser you will come up with a login page put in the password (may be "admin") and then look at the Primary DNS and write this down then insert it into settings/Wi Fi/(blue button)/and then insert the numbers you wrote down into the DNS section.
If you have trouble logging into your router call customer support for Internet Service Provider (ISP) and find out how to find thE DNS
Hope this helps all and happy messaging
oh and this works for FaceTime as well!!!