| June 8th, 2017 01:56 PM | |
| Vishal Kotkar | Re: vpn gre error As you facing VPN 800 error with GRE blocked for PPTP error, here I will tell you best solutions to resolve the errors. Error Description: The remote connection was not made because the attempted VPN tunnels failed. The VPN server might be unreachable. If this connection is attempting to use an L2TP/IPsec tunnel, the security parameters required for IPsec negotiation might not be configured properly. Possible Solutions: a> If you know which tunnel should actually be used for your deployment, try to set the ‘Type of VPN’ to that particular tunnel type on the VPN client side. [This can be set by clicking the ‘Network Connections’ icon on the bottom right of the task bar, Select your Connection, Right Click -> Properties -> Securities Tab -> Under ‘Type of VPN’ select the interested VPN tunnel type ] By making VPN connection with a particular tunnel type, your connection will still fail but it will give a more tunnel specific error (for example: GRE blocked for PPTP, Certificate error for L2TP, SSL negotiation errors for SSTP, etc.) b> This error usually comes when the VPN server is not reachable or the tunnel establishment fails. i. Make sure the VPN server is reachable (try to PING the server). ii. If interested in PPTP, make sure PPTP port (TCP 1723) or GRE Port (47) is not blocked on in between firewalls. iii. If interested in L2TP, make sure 1. Correct pre-shared key or machine certificate are present both on client and server. 2. L2TP port (UDP 1701) is not blocked on any of the firewalls. iv. If interested in IKEv2 based VPN tunnel, make sure 1. IKE port (UDP port 500, UDP port 4500) is not blocked. 2. Correct machine certificate for IKE are present both on client and server. v. If interested in SSTP, make sure correct machine certificate is installed on the server and correct trusted root certificate is installed on the client machine. |
| June 8th, 2017 01:55 PM | |
| Unregistered | Re: vpn gre error I’m facing an VPN 800 error with GRE blocked for PPTP error, here can you please tell me possible solution ro resolve such issues? |
| June 8th, 2017 01:55 PM | |
| Unregistered | Re: vpn gre error VPN GRE Error |
| June 15th, 2016 10:45 AM | |
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