If you ever encounter VPN error 0x800704C9, it is because there are no SSTP ports available on the server. This VPN error should not be ignored as it can cause system slowdown or eventually, a total system crash. This is one of the common VPN errors and incredibly easy to fix independently.
Fix VPN Error 0x800704C9
In order to fix VPN error 0x800704C9, the user will need to ensure that there are sufficient ports on the RAS server, which are configured for remote access. To verify this, follow these steps: 1] Open the RRAS (Routing and Remote Access) control panel 2] Expand the entry for your server, right-click on ‘Ports’, and then hit ‘Properties’ in the context menu 3] Click on ‘Name’ and select ‘WAN Miniport (SSTP)’ from the Name List 4] Now click ‘Configure’ 5] Modify the number of ports in the Maximum ports list as appropriate for you, noting that there are 128 ports available by default 6] Click ‘OK’ in the Port Properties window to close it. Try establishing the VPN connection again to see if VPN Error 0x800704C9 is gone. As nothing comes faultless, VPN can also now and then come up with errors that are totally resolvable. With the help of our guide, you can fix common VPN Errors like error 0x800704C9 that you might come across.