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VPN Error 800 - Connection failed

Tried to get vpn connection established and received this error on several different machines.

Error Code: 800 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.

Have tried disabling firewall on both ends but still cannot establish a connection.

Can ping the IP address of the VPN from the machine.
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bmurray-vb

Need a bunch more information here.

1.  OS Version of machine that I'm assuming is running Routing and Remote Access services?
2.  Are you accessing the VPN from outside the local subnet via the internet?  If so, is there a firewall between your machine and the server?   If so, have you created the appropriate NAT policies to allow the appropriate protocols through the firewall from the public IP address that would be the destination for the VPN clients, and the the server hosting the RRAS?
3.  What are the client security options and connection types you are choosing?
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1) Window Server 2008 R2
2) Accessing from outside of the local network via Internet.  The VPN was working before fine and only become an issue as of recently. I have tried disabling firewalls on both ends and still cannot get through
3)Have tried Automatic, PPTP, SSTP. Not usiing IPSec.
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Found issue on own. Router was replaced and port not forwarded properly.