The servers are coming back online, and the patch notes for Hotfix 1.5.15.3 are available below.

https://duneawakening.com/news/dune-awakening-1-5-15-0-patch-notes/#15153

This hotfix is available for @Steam , @PS5 and @XBOX

If your download does not appear once maintenance is over, please check your queued downloads, or restart your Steam client or console to get the file. Otherwise, you won't be able to connect if you're not using the latest version.