Practical procedure and troubleshooting notes for Eaglesoft Messenger Error - Port 5964 Error Code 0.
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🔗 Original Patterson Support Article

“Clients are unable to connect to EagleSoft Messenger — Port 5964 may be blocked or the service is not running.”

🧪 Step-by-Step Troubleshooting

1. Verify Folder & Registry Permissions

Ensure that proper permissions are set for both the EagleSoft folder and relevant registry entries.

• 🔗 View Permission Setup Guide

2. Check if the Messenger Service is Running

• On the server, press Windows + S and search for:
  Patterson EagleSoft Messenger Server
• You should see it listed under Background Processes.
• If it’s not running, start the service manually.

3. Adjust Messenger Client Settings

On the affected client machine:

1. Press Windows + S and search for Technical Reference.
2. Open the program and go to:
   • Settings (or Database Setup if using version < 21.20).
3. Uncheck Auto Search for Server.
4. Manually enter the correct Server Name or IP address.
5. Apply settings and exit.

4. Confirm Network Connectivity

• Ensure the client machine can ping the server by name and IP.
• Confirm that no firewall rules are blocking traffic on port 5964.

5. Final Steps

• If all else fails, try restarting the server machine that runs the Messenger service.

⚙️ Set Messenger to Auto-Start with Database Server

To ensure the Messenger Server starts with the database:

1. Press Windows + S and search Technical Reference.
2. Navigate to Settings (or Database Setup if below version 21.20).
3. Check the box:
   Start Patterson EagleSoft Messenger Server when Database Server is Started
4. Click Apply and exit.

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