vpn error 733

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VPN Error 733 - the PPP control protocol for this network protocol is not available on the server.

Situation: one of our clients setup a XP Pro as a VPN host but they keep receiving "TCP/IP CP reported error 733 - the PPP control protocol for this network protocol is not available on the server" message. So, they called us for the help.

Analysis: normally, a VPN client receives TCP/IP CP reported error 733 because of the TCP/IP settings. In the most cases, the VPN client does not receive a IP from the DHCP.

The client has a 3COM wireless router and the VPN XP connects the router with wireless adapter. In many cases, a VPN client may not be able to receive an IP from a wireless VPN computer because of the security settings.

Resolution: Assign specify IP addresses on the XP VPN host. To do this, follow these steps:

1. Right-click on Incoming Connections.

2. Select Properties and then Networking.

3. Select Properties of Internet Protocol.

4. Check Specify TCP/IP addresses.
• In From, type the starting IP address.
• In To, type the ending IP address.