Description of the problem: After the telecommunications broadband service was handled in the school business hall, the dial-up connection system successively displayed 619 errors, 629 errors, and finally displayed 629 errors
Solve the problem: first click the advanced option of dial-up connection, then click the edit button of "Edit Properties", and finally edit the "server name or address" with the suffix @.
The problem is solved, but the connection is often disconnected, sometimes it can be connected, sometimes it cannot be connected, sometimes an exclamation point appears, sometimes there is no exclamation point.