Xbox one cannot connect to multiplayer

When trying to connect, game says “connection fails” and “check cables” and other garbage. This seems to be a longstanding issue, but no recent posts about it. Any one know of a fix? the usual troubleshooting methods do not work.

check your network setting for your xbone. Your NAT type should read: Open. If you can’t get your NAT type to change through your xbone. Your problem is most likely with your router settings. I have a buddy that went through this recently. He searched youtube for a fix to the problem and found his model router and the fix for it. He said he had to jump through some hoops but it worked. I can confirm as I coop with him regularly.