To resolve this problem you have to:

1- To access your mydlink account from a computer outside your network to insure that the mydlink work in wireless

2- If the problem is only in 3G :

• Verify that your 3G connection has a sufficient flow and stable

• The Mydlink Lite application uses port 80, however this port can be blocked by some ISPs

• maybe the 3g provider doesn't support the technology used by Mydlink server (relay connection)