this is a dns issue for sure. when I jump networks or even cell towers it will work. for example if I am up in gurnee working it works but I come back towards my office in lake in the hills or home in west chicago it stops working. same error everyone else has. I would look into any modifications you have made in dns. somewhere the zone file has to have a error. if not a dns error then try disabling tapatalk to see if that might be messing with it. If I am on LTE it is almost always down. 3g is hit or miss. I am on Verizon.