How to Join Your Astroneer Server ​

To join your server you need the IP address and port of your server as well as the server password if one is set.

1. Launch Astroneer
   Start Astroneer via Steam.

2. Select CO-OP
   In the main menu, select CO-OP.

3. Choose Dedicated Server
   Click Dedicated Server to join a dedicated server.

4. Enter server address
   Enter the IP address and port of your server in the following format:

   123.45.67.89:8777

   123.45.67.89:8777

5. Enter password (optional)
   If a password is set on your server, enter it here.

6. Join
   Confirm to join your server.

Disable encryption ​

Some clients — in particular on Linux or Steam Deck, but occasionally also on Windows — cannot directly connect to an Astroneer dedicated server. In this case, encryption must be disabled both on the server and on all clients.

On the server ​

1. Open dashboard
   Open the dashboard of your server.

2. Open settings
   Navigate to the Settings.

3. Disable encryption
   Enable the Disable Encryption toggle.

4. Restart the server
   Save the setting and restart your server.

On the client ​

1. Open Engine.ini
   Press Windows Key + R, enter the following path and confirm with Enter:

   %localappdata%\Astro\Saved\Config\WindowsNoEditor\Engine.ini

   %localappdata%\Astro\Saved\Config\WindowsNoEditor\Engine.ini

2. Add entry
   Append the following section at the end of the file:

   [SystemSettings]
   net.AllowEncryption=False

   [SystemSettings]
   net.AllowEncryption=False

3. Save the file
   Save the file and restart Astroneer.