Arma 3 Can’t Host Server

Hey Dev, are you having trouble hosting an Arma 3 server? Don’t worry, you’ve come to the right place! In this article, we’ll discuss 20 possible solutions to help you fix this issue. Let’s get started!

1. Check Your Internet Connection

The first thing you should do is check your internet connection. Arma 3 requires a stable and fast internet connection to host a server. If your internet connection is slow or unstable, it may lead to Arma 3 not being able to host a server. Use a speed test tool to check your internet speed and make sure it meets the minimum requirements.

Minimum Internet Speed Requirements:

Connection Type	Minimum Download Speed	Minimum Upload Speed
DSL	1 Mbps	1 Mbps
Cable	5 Mbps	1 Mbps
Fiber	10 Mbps	5 Mbps

If your internet speed doesn’t meet the minimum requirements, you may need to upgrade your internet plan or contact your internet provider to fix the issue.

2. Check Your Firewall Settings

Your firewall settings may also prevent Arma 3 from hosting a server. Check your firewall settings and make sure Arma 3 is allowed to communicate through the firewall. Here’s how to do it:

1. Open Windows Defender Firewall
2. Click on “Allow an app or feature through Windows Defender Firewall”
3. Find “arma3.exe” and “arma3server.exe” in the list and make sure they’re both checked
4. If they’re not in the list, click on “Allow another app” and browse for “arma3.exe” and “arma3server.exe”

If you’re using a third-party firewall, check the documentation on how to allow Arma 3 through the firewall.

3. Check Arma 3 Server Ports

Arma 3 uses specific ports to host a server. Make sure these ports are open and not blocked by your router or firewall. Here are the default ports used by Arma 3:

Port Number	Protocol	Purpose
2302	UDP	Main Game Port
2303	UDP	Steam Query Port
2304	UDP	Voice Over IP Port
2305	UDP	Reserved for Arma 3

You can check if these ports are open using a port scanner tool. If the ports are closed, you may need to forward them in your router settings or contact your internet provider to fix the issue.

4. Update Arma 3

Make sure Arma 3 is updated to the latest version. Sometimes, an outdated version of Arma 3 may prevent you from hosting a server. Here’s how to update Arma 3:

1. Open Steam
2. Go to “Library” and right-click on Arma 3
3. Click on “Properties”
4. Go to “Local Files”
5. Click on “Verify integrity of game files”

Steam will check if there are any missing or corrupted files in Arma 3 and update them if necessary.

5. Update Arma 3 Server Files

If you’re hosting an Arma 3 dedicated server, make sure the server files are updated to the latest version. Here’s how to update Arma 3 server files:

1. Download the latest server files from the official Arma 3 website
2. Extract the files to your server directory
3. Restart the server

The server will update to the latest version and you should be able to host a server without any issues.

6. Check Server Mods

If you’re using server mods in Arma 3, make sure they’re compatible with the latest version of Arma 3. Sometimes, an outdated mod may prevent you from hosting a server. Here’s how to check server mods:

1. Open Arma 3 Launcher
2. Go to “MODS”
3. Check if the mods are up-to-date and compatible with the latest version of Arma 3

If a mod is outdated or incompatible, you may need to update or remove it to host a server.

7. Disable Antivirus Software

Your antivirus software may also prevent Arma 3 from hosting a server. Disable your antivirus software temporarily and see if it fixes the issue. Here’s how to disable Windows Defender:

1. Open Windows Security
2. Click on “Virus & threat protection”
3. Click on “Manage settings” under “Virus & threat protection settings”
4. Turn off “Real-time protection”

If you’re using a third-party antivirus software, check the documentation on how to disable it temporarily.

8. Run Arma 3 as Administrator

Running Arma 3 as an administrator may also help fix the issue. Here’s how to run Arma 3 as an administrator:

1. Right-click on Arma 3 shortcut or executable
2. Click on “Run as administrator”

Running Arma 3 as an administrator gives it the necessary privileges to host a server.

9. Check Arma 3 Server Configurations

If you’re hosting an Arma 3 dedicated server, make sure the server configurations are set up correctly. Here are some common server configurations that may affect server hosting:

• Server Name
• Password
• Max Players
• Server Description
• Server Difficulty
• Server Timeouts
• BattlEye Anti-Cheat
• Player Slots
• Server Ports (again)

Check the server configurations and make sure they’re set up correctly. You can find the server configurations in the server.cfg file located in your server directory.

10. Check Arma 3 Server Logs

If your Arma 3 server is not hosting, check the server logs for any errors. The server logs may provide useful information on why the server is not hosting. Here’s how to check Arma 3 server logs:

1. Open your server directory
2. Go to “logs”
3. Open the latest log file

Look for any errors or warnings in the log file that may indicate why the server is not hosting.

11. Check Arma 3 Server Mods Folder

If you’re using server mods in Arma 3, make sure they’re located in the correct folder. Here’s how to check the Arma 3 server mods folder:

1. Open your server directory
2. Go to “mods”
3. Check if the mods are located in the correct folder

If the mods are not located in the correct folder, move them to the correct folder and restart the server.

12. Check Arma 3 Server BattlEye Configuration

If you’re using BattlEye Anti-Cheat in your Arma 3 server, make sure it’s configured correctly. Here’s how to check the BattlEye configuration:

1. Open your server directory
2. Go to “BattlEye”
3. Open “beserver.cfg”

Check if the BattlEye configuration is set up correctly. You can find more information on how to configure BattlEye in the official Arma 3 wiki.

13. Check Arma 3 Server Mod Dependencies

If you’re using server mods in Arma 3, make sure they don’t have any missing dependencies. Here’s how to check Arma 3 server mod dependencies:

1. Open Arma 3 Launcher
2. Go to “MODS”
3. Check if the mods have any missing dependencies

If a mod has missing dependencies, you may need to download and install them to host a server.

14. Check Arma 3 Server BattlEye Files

If you’re using BattlEye Anti-Cheat in your Arma 3 server, make sure the BattlEye files are up-to-date. Here’s how to update the BattlEye files:

1. Open your server directory
2. Go to “BattlEye”
3. Delete the “BattlEye” folder
4. Restart the server

The server will download the latest BattlEye files and install them.

15. Check Arma 3 Server RPT Files

The Arma 3 server RPT files contain useful information on server errors and warnings. Check the RPT files for any errors that may be preventing the server from hosting. Here’s how to check the Arma 3 server RPT files:

1. Open your server directory
2. Go to “logs”
3. Open the latest RPT file

Look for any errors or warnings in the RPT file that may indicate why the server is not hosting.

16. Check Arma 3 Server Config File Encoding

If you’re hosting an Arma 3 server on a Linux machine, make sure the server config file is encoded in UTF-8. Arma 3 requires UTF-8 encoding for the server config file. Here’s how to check the server config file encoding:

1. Open the server config file
2. Check the encoding in your text editor or IDE
3. If it’s not UTF-8, save the file with UTF-8 encoding

After saving the file with UTF-8 encoding, restart the server.

17. Check Arma 3 Server Mod Signature Verification

If you’re using server mods in Arma 3, make sure they’re signed and verified by the server. Here’s how to check the Arma 3 server mod signature verification:

1. Open your server directory
2. Go to “Keys”
3. Open “server.cfg”

Make sure the following line is uncommented:

verifySignatures=2;

If it’s commented out, remove the semicolon and restart the server.

18. Check Arma 3 Server RAM Usage

If your Arma 3 server is not hosting, check the RAM usage of the server. The server may require more RAM to host a server. Here’s how to check Arma 3 server RAM usage:

1. Open Task Manager
2. Go to “Details”
3. Find “arma3server.exe” in the list and check the RAM usage

If the RAM usage is high, you may need to allocate more RAM to the server or reduce the number of players or mods.

19. Check Arma 3 Server CPU Usage

If your Arma 3 server is not hosting, check the CPU usage of the server. The server may require more CPU power to host a server. Here’s how to check Arma 3 server CPU usage:

1. Open Task Manager
2. Go to “Details”
3. Find “arma3server.exe” in the list and check the CPU usage

If the CPU usage is high, you may need to allocate more CPU power to the server or reduce the number of players or mods.

20. Contact Arma 3 Support

If none of the above solutions work, you can contact Arma 3 support for further assistance. They may be able to provide you with additional solutions or troubleshoot the issue for you. Here’s how to contact Arma 3 support:

• Visit the official Arma 3 support website
• Submit a support ticket or email them at support@bistudio.com

Conclusion

Congratulations Dev, you made it to the end of the article! We hope this article was helpful in resolving your Arma 3 server hosting issues. If you have any questions or comments, feel free to leave them below. Happy gaming!

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