Windows and Software Expert
Error 734 occurs when some users try to use their VPNs with PPP dial-up connections. The complete error message reads: Error 734: The PPP Link Control Protocol has ended. As a result, a VPN connection cannot be established.
This error can often be associated with an incorrectly configured PPP dial-up connection. Here are some Windows permissions that can be used to resolve error 734 for most users.
Windows and Software Expert
- Error 734 may occur when starting the VPN client over a PPP dial-up connection.
- Read the instructions below and follow the instructions to resolve this issue and restore Internet access immediately.
- Want to fixWhat’s the VPN situation? Take a look at the VPN errors and solutions page.
- Also visit the VPN Guides Hub for the latest tips on how to get the most out of your VPN.
6 quick fixes to fix VPN error 734
- Disable Negotiate Multiple Connections for single sign-on connections.
- Set up private internet access.
- Select the Allow Insecure Password option.
- Configure dial-up protocol (PPP) settings.
- Eliminate registry conflicts.
- Disable Windows Defender Firewall
This issue can occur if one of the following conditions is true:
Multichannel negotiation is enabled for a single link connection.
The security configuration for dial-up connections is incorrectly configured to use the Require secure password option.
Fix 1 – Change Parameter Settings
This error sometimes occurs due to incorrect credentials being saved Connected to your network.
1. Click the search box and enter “network connections”.
2. Then click Show Network Connections.
3. Then right click on your VPN connection.
4. Then click Properties.
5. In the Properties window, click the Options section.
6. Then turn off the Remember Connection Information option.
7. To save this simple change, click OK.
Then close the “Network Connections” window.
8. Click the network icon on the taskbar.
9. Then select the VPN connection by clicking it once. To complete the connection setup, click “Connect”.
Check if it works.
Fix 2 – Allow Microsoft CHAP Version In VPN Settings
1. First press the Windows key with the R key.
2. In the Run window, enter this code and press Enter to access the list of networks on your computer.
3. Right-click the VPN connection again and select Properties.
4. Then go to the “Security” tab.
5. Then click the round button next to “Allow these protocols”.
6. Make sure the “Microsoft CHAP Version 2 (MS-CHAP v2)” option is enabled.
7. Then click “OK” once and these settings will be saved.
Try connecting to the VPN again.
Fix 3 – Disable Multipath For Single Connection
The problem may occur due to an error in the PPP settings.
1. You need to open the “Network Connections” window. To do this, enter the working terminal by pressing the Windows R keys.
2. When terminal opens, enter “ncpa.cpl” then click “OK”.
3. When this window opens, right-click the problematic connection. Then you need to click on “Properties”.
4. In the Properties window, go to the Options window.
5. Then click “PPP Settings” …
6. Disable the “Negotiate multi-link for single-link connections” option in the “PPP Settings” area.
7. Then click OK.
8. Don’t forget to click OK in the Properties window.
Close the window. Try to connect to the VPN again.