On steam click 'View' then select Servers. Click Filter and select Conan Exiles, wait for the list to populate and then find your server.
Another addition to this, OTHER people can see and play on the server ... But I, nor my friends can.
+1. Been about 4 hours so far. Attempted multiple things such as; migrating the server, altering settings, refreshing settings, updating and validating the server, deleting all FTP files and restarting the server entirely. None of which has rendered any result.
Edit; The server IS available on steam, still cannot join it however.