Hey there,
- Are you using the Conan Exiles Dedicated Server Launcher (Official Version: 1.1.2 / Beta: 1.2.5)?
- have you checked you don’t have a firewall blocking the connections? (ports)
This issue was reported by a few people after Update 41 (Funcom Live Services). I hope it will get fixed for you soon 
In the future, be sure to check for similar issues by using the search feature in the top right.