Java unknown host exception

Question

I am trying to access textalertapp.com via HTTP Post request from my android application. But I am getting Unknown host error. Can anybody help me solve this issue.

Answer 1

This means that your host is unknown, i.e. does not exist or is not accessible. Check you IP again and check whether you can get this IP from your device. Probably this IP exists in your local network and is not accessible from outside.

If IP exists check firewall definitions. Firewall cause the same effect.