Did it work before (with older driver perhaps)?
If it is not firewall or other security feature, then it has to be driver related, assuming the TV is enabled...
I see in the screenshot the Teredo Tunneling Pseudo-Interface with an exclamation mark; it may not be the cause of the issue but let’s right click on it and select Uninstall, then restart the computer when it is gone. Let me know how it goes.