Can you find out if the user is crossing a firewall? I suspect that that is the case, and that firewall will not allow the ms dun/pptp protocol traffic to cross.

When we did get a connection, we couldn’t do anything and after a few minutes, the connection would drop. We tried changing the router, firmware and DSL modem with no change. Diagnostic: When we connect directly to the DSL modem, our connection worked fine, but not with the router in place. So we know it's a Linksys problem. In Windows, when attempting to connect to the IU VPN When you receive the error, it means the VPN program on your computer cannot negotiate a connection with the VPN server. Possible sources of the problem include the following: Home firewall or router: A firewall or improperly configured router may be blocking VPN traffic. Best VPN For Windows 10 | by VPN Tag

My vpn server is behind my linksys router, and I also open the port there PPTP 1723-1723 / L2TP 1701-1701 to 192.168.1.10. Eveytime when I use my public ip 76.x.x.x, I always see this message. Comment

VPN client error 619 - Cisco Community Can you find out if the user is crossing a firewall? I suspect that that is the case, and that firewall will not allow the ms dun/pptp protocol traffic to cross.

Mar 29, 2017

VPN ERROR 619 :: A connection to the remote computer could Oct 02, 2017 vpn connection error 619 800 868 - YouTube Feb 11, 2014 COMO SOLUCIONAR EL ERROR 619 DE CONEXION - YouTube Jan 27, 2016