Jul 24, 2019 · Method 4: Set Your VPN to Use Point to Point Tunneling Protocol This VPN connection problem can be also solved by just changing the protocol your VPN uses. To configure the Point-to-Point Tunneling Protocol (PPTP) on your VPN, all you have to do is:

The Include Windows logon domain check box is selected in the Options tab of the dial-up connection’s Properties dialog box.; An incorrect user name or password is used. In order to fix broadband connection error or vpn error 619, 629, 631, 633, 650, 651, 678, 680, 691, 721, 769, and 815 you need to follow the guidelines, mentioned in Mar 29, 2017 · Unable to establish the VPN connection. The VPN server may be unreachable, or security parameters may not be configured properly for this connection. 801 This connection is configured to validate the identity of the access server, but Windows cannot verify the digital certificate sent by the server. 802 The card supplied was not recognized. Solution: A. Verify the logon ID and password are correct. B. Make sure the Include Windows logon domain check box is unchecked in the Options tab of the dial-up connection’s Properties dialog box.

Nov 21, 2019

ただし、VPNに関する問題が発生する可能性があり、ユーザは エラー691 エラーメッセージで Connection failedを 報告 しました 。 VPNを使用したい場合、これは問題になる可能性がありますが、この問題を解決する方法はいくつかあります。

Mar 15, 2018

Done, your Windows 8 now should be connected to the VPN server via L2TP/IPsec protocol. To end connection just press “Disconnect”. If you have problems while connecting to our VPN server, just let us know by submitting ticket or through live-chat on our homepage. I have been assuming this a Windows VPN using RRAS based on the logs. Assuming so you want to use the LAN IP of the server running the RRAS service. Thinking about it, I would be tempted to change the Dial-in tab setting to Control through NPS.