I submitted my ticket at 2pm today, and I am still waiting.
Last year, I submitted a ticket, it took them 2 days to reply without any solution on my Ark Server.
Update: Got a trash respond from Nitrado. "Restart Server and try to connect through the game."
"If you are having issues connecting your server since the last update, please restart the server and try again. Alternatively, you can use a 2nd connection method explained in our wiki:"
Which I am sure most of us on this Forum has already tried.
Yup, Got the same response. I even stated in my original ticket I had already tried these.