I found a way to mitigate for this. Sorry if this is a bit technical. If it doesn't make sense, ask a network savvy friend to help you. In your X1 router, go to Advanced >Port Forwarding, enable it, and add a service for that port that points to a non-existant server IP. For example, I added one with Common Service: Other, Service Name: wharever but I used "Mitigation", Service type TCP/UDP, server IP 10.0.0.5 (this was an IP I know is not assigned to anything on my network...try pinging an IP before using it), and for IPv6 do the same, and enter a start and end port of 7547. Save it. Test again and you will see that the port no longer responds (as it is being redirected to a non-existant server which thus can't repond). Hope that helps!
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