The encryption settings are supported by computers running Microsoft Routing and Remote Access Service. If you use different ...

The encryption settings are supported by computers running Microsoft Routing and Remote Access Service. 

If you use different network access servers for dial-up or VPN connections, ensure that the encryptions settings you select are supported by your servers.

If No encryption is the only option selected, traffic from access clients to the network access server is not secured by encryption. This configuration is not recommended.