Message: Activate port 443 - you have to do that

If you want to use a service such as UseNeXT, you must first activate port 443. We show you exactly how this works in this practical tip.

Router, firewall, anti-virus: activate port 443

If you receive the message that port 443 is blocked, you must activate it yourself. Activation is possible in the firewall as well as in the router and in the anti-virus software.

• If port 443 creates problems in connection with the "UseNeXT" service, the blocking is usually in the anti-virus software. To do this, start the installed anti-virus program and search for the "Ports" category in the settings.
• In some cases you must also activate port 443 in the firewall. Use our instructions for Windows 10, Windows 8 and Windows 7.
• You can also activate port 443 in the router. Depending on the router model, you have to do this differently. Use our instructions for the FritzBox, Easybox, the Speedport of Telekom or a Unitymedia router.