Check if they are open. You can try changing the data transferring protocol from UDP to TCP.Also, a simple reset of the TCP/IP stack can sometimes help. Software failure on your computer No matter how ...

Why Does My Computer Say There Is No Valid IP Address When I Connect My Modem to My Laptop?. If a computer is unable to configure a valid Internet Protocol address, it can't connect to a network.

If your Network icon indicates No internet connection even though you are connected to the Internet, then this post shows how to fix the issue in Windows 11/10.

To fix VPN Connection Error 628, The connection was terminated by the remote computer before it could be completed, allow the required Protocols and see.

You can change your IP address from the network settings controls menu on a Windows PC, Mac, and even your phone.