Hello doucetfa,
In the FireWall of Windows 11, open the port 443 for SSL.
Here are the steps to follow:
To enable Port 443 on Windows, you need to add it to Firewall. Here’s how to allow port 443 in Windows Firewall:
- Open the Firewall Control Panel by accessing “Start” > “Run” and typing firewall.cpl
- On the left pane, select “Advanced Settings”, then click on “Inbound Rules” in the top-left corner.
- Next, click on “New Rule” on the right-side panel in the “Action” column.
- A new window will open. Select “TCP” and “Specific local ports” where you need to type “443” next to it.
- In the “Action” window, select “Allow the connection” and click “Next”.
- In the “Profile” window, choose “Domain” and “Private”, then click “Next”.
- In the “Name” window, type “WCF-WF 4.0 Samples” name and click on “Finish”.
Please note, to set up the Outbound Rules, you need to repeat the septs 2 to 8.
If you find any difficulty in perfoming above steps...tempararly you can disable firewall.... which is not recommended...
Reference: https://community.cisco.com/t5/vpn/the-vpn-service-is-not-available-exiting/td-p/4589321
Best regards
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