Contrary to bungies code index stating to delete and reinstall to solve the nightingale error, I found that it was not related to that at all (at least for me). I was receiving the nightingale error at my place, but when I brought it to my gfs place, it worked. I'm assuming it has something to do with router or WiFi settings. I'll update when I find out specifics.
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I also came to this conclusion and was unable to resolve it with quite extensive tinkering. I spent at least an hour on the phone with netgear support while they helped me through some "port forwarding". This had no effect. I also found that wiring my connection directly to my modem worked but not when I wired my Xbox to the router. Hope this helps.