My Internet service provider refusing my connection

I have a USB modem locked to Globe Broadband Internet service provider. It is a post paid plan with a speed of up to 2mbps. The problem is not the speed but the reconnection issue. Most of the time logging to my ISP I cannot connect to the server because the service refuse my connection at random.
The system says the remote computer did not respond in a timely manner. Sometimes works but most of the time doesn’t work.

Error 718: The connection was terminated because the remote computer did not respond in a timely manner.
