VPN 733,720 error Solution

The solution of VPN 733 is to remove the IPX protocol and reconnect it.

 

 

My desktop VPN dial-up can be connected, but the notebook always appears when registering a computer: VPN error 720: No PPP control protocol is configured

After checking the protocol, PPP exists, but no matter how you change the settings, it fails. The final judgment was that the PPP protocol was damaged, but after checking the Internet for a long time, no reinstallation method was found.

One morning, I accidentally saw a webpage. The author of the article encountered a very similar situation and had a hard time solving the problem. So I took a look at the above method, and it was very effective and successful!

Because the article is in English, and some points are not very detailed, it is necessary to write the detailed steps, just as the author wishes, so that other friends who encounter such a situation can no longer suffer too much.

Step 1: Modify the Registry Regedit. Find HKEY_LOCAL_MACHINE, expand system-> CurrentControlSet-> Control-> class-> folders starting with 4d36e972, and click the following folders, delete two folders with the key value driverdesc equal to the WAN micro port (pppoe) and Wan micro port (IP) (it is best to back up the folder in advance ). In this way, the two devices that we want to delete can be deleted in the Device Manager.

Step 2: Go to the Device Manager and select Show Hidden devices in the toolbar view. Open the network adapter and delete the WAN micro port (pppoe) and Wan micro port T (IP ).

 

 

Step 3: Open the C:/Windows/INF/netrasa. inf file (the hidden file needs to be displayed first), add a semicolon before excludefromselect =/, and add a semicolon after ms_ndiswannbfout. Save the file.

 

Step 4: Select Add a known device from add new hardware, and then select Network Adapter> Microsoft. In this way, you can see the WAN micro port T (pppoe) in the list) and Wan micro port (IP), add the two devices, and then restart.

 

Step 5: fix the TCP/IP protocol. I use winsockfix.exe. You can download it online. After the fix is selected for running, restart the system.

 

Step 6: connect to the VPN. This time it will be successful.

 

Okay, done!