Windows Live OneCare Help Center
I can't connect to my network by using RAS over VPN
When you try to connect to a network or server by using a VPN connection with RAS software, the software can't make the connection.
You may have to allow a protocol for VPN to work. For example: you would have to allow the built-in GRE (General Routing Encapsulation) protocol for Microsoft VPN to function as expected. For Nortel VPN, you would allow the built-in ESP (Encapsulating Security Payload) protocol. If you are unsure of which protocol to allow, check with your VPN provider to confirm which one you should use.
To resolve this issue by using built-in protocols, follow these steps:
On the left side of the Windows Live OneCare display, click View or change settings.
- Click the Firewall tab.
- Under Other settings, click Advanced Settings.
- Click the Ports and Protocols tab.
- Click to select the check box for the protocol you want to turn on.
- Click OK.
We recommend that you allow a protocol only if you need it. Allowing all the protocols in Windows Live OneCare can make your computer more vulnerable and less secure.
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