ADSL broadband connection error (720) and solution

Broadband connection error 720 Cause: ADSL dialing when encountering 720 error is quite a depressing thing, the meaning of the error is: network protocol failure, causing this There are two reasons for the failure, so we also have two solutions.

Broadband connection error 720 solution: (1) ADSL ISP server failure, abnormal network shutdown caused network protocol error, you need to call the ISP to ask, delete all network components to re-install the network. (2) After the XP system is automatically updated, the TCP/IP error occurs, the local loopback cannot be pinged, and the ADSL dialup verifies the user name and password and prompts 720 error. Solution: Open Control Panel, add/remove programs, uninstall system upgrade patches 893066 and 890923, and uninstall all patches without this upgrade patch.

Broadband connection error 720 phenomenon is common in XP system, generally the system is restarted, can be dialed multiple times, 90% can be solved.