Texas Tech University.
TTU Home IT Division IT Help Central

Modify an Existing VPN Connection

To modify an existing PPTP VPN connection for IPsec/L2TP, please following the instructions below:

Windows Vista:

STEP 1: Click the Start Button.  Right-click on Network and click Properties.

          

STEP 2: Click Manage network connections.

          

STEP 3: Right-click your existing PPTP VPN connection, then click Properties.

          

STEP 4: Click on the Security tab, then change the following:

          

STEP 5: Click on the Networking tab. Change the Type of VPN to L2TP IPsec VPN, then click IPsec Settings.

          

STEP 6: Click Use preshared key for authentication.  Enter TTUnetVPN for the key. Click OK on all preceding windows.

NOTE: The key is case sensitive.