Error 619 (“a connection to the remote computer could not be established”) is common error you may encounter while connecting to a VPN which is based on Microsoft Windows. Some older VPN servers may report this error as “The port was disconnected”. Just like VPN Error 800, this error happens when you either try to connect to a virtual private network or when you are suddenly disconnected. If you see this error, you can try the following solutions:
1. VPN clients installed on your PC can be conflicting, so try deleting the rest and leave only one VPN client remaining. After deleting make sure no services of such clients left (check in the Processes tab of the Windows Task Manager).
2. Make sure your antivirus software (Kaspersky, Norton or other) or firewall (Outpost) does not block VPN ports access. GRE protocol and TCP port 1723 should be open.
3. Your firewall can be also a piece of hardware, for example your router. Log in to the admin panel of your router and make sure VPN ports are open. Make sure your router has the latest supported firmware. If not, download and install it from the vendor’s website. Latest models even make it possible to update from their admin panel automatically. There may be a special configuration called ”VPN pass through” in the router config. If you still encounter VPN Error 619, try connecting directly without a router to make sure the problem is in the system, not in your router (disconnect the Ethernet cable from the router and connect directly to your computer).
4. If it does not help, try deleting your VPN client, restarting and reinstalling the client, set up the connection settings. If you use a default Windows VPN client, try deleting the connection and set it up from the beginning. Installing latest Windows updates may also help.
5. Although not all VPN providers support it, connecting via Open VPN which uses HTTP (80) and HTTPS (443) ports could help.
6. If still no luck, you can uninstall firewall or antivirus software temporarily to make sure they do not block your VPN connection. You may create a restore point to easily come back to a previous system state and not to install everything once again.
7. Sometimes changing connection settings may help, however, they should be supported by your VPN provider. Go to Security settings of the connection and change the VPN type from Automatic to PPTP. Also try changing data encryption configuration to Optional and then select CHAP & MS-CHAP v2 (in this case MS-CHAP v2 should be really available on your VPN server). Within Networking disable IPv6, in case there are any IP conflicts existing.
8. Try connecting from another Windows-based computer, or even another device like iPad or your mobile phone. If you still encounter VPN Error 619, you should contact support of your VPN provider, as the problems may be on their side