How to solve Windows XP dial-up connection error and prompt 651 code problem

The most annoying thing is to try for a long time but always prompted WinXP system dial-up connection error and prompt 651 error code. Fortunately, nowadays, they have entered the WIFI era, but there are still many users who use broadband dial-up connections. So what does the 651 error code mean? This 651 is just a code in a broadband, and it literally doesn't make sense. Today we will analyze and explain the problem.

Cause

1. Network cable failure;

2. Modem fault;

3. NIC fault;

4. Modem itself Settings.

If it is a network operator problem. Try to resolve as follows:

1, open the Network and Sharing Center to find the Change adapter settings, right-click Local Area Connection and select Properties click configuration - connection speed and duplex mode, this selection 100Mbps full-duplex Make sure to quit.

2, refer to the error 678 processing method to determine whether it is caused by the disconnection of the network connection line.

3. After the above processing method is checked, it still cannot be solved. It may be that the ADSL Modem has been damaged. It is OK to contact the telecom operator in time to replace it.

When you encounter such a problem, first find out what the problem is, and then find a specific solution based on the specific reasons.