Step-by-Step Setup

1. Configure MSFS2024 on PC1 (Simulator Host)

MSFS2024 listens on port 500 by default for SimConnect.

Allow SimConnect through Windows Firewall:

1. Go to Control Panel > Windows Defender Firewall > Allow an app or feature...
2. Add FlightSimulator.exe if needed, and allow it on Private networks.
3. Ensure your home network is not set to Public.

Or manually add an Inbound rule for port 500 (TCP):

1. Go to Windows Defender Firewall > Advanced Settings
2. Click Inbound Rules > New Rule
3. Select Port, then TCP, and enter 500
4. Allow the connection
5. Name it SimConnect TCP 500

RUN MSFS2024

2. Install and Run SimLink on PC2

Create or edit the file named SimConnect.cfg on PC2 (the SimLink machine) with the following content:

[SimConnect]
Protocol=IPv4
Address=<IP_OF_PC1>
Port=500
MaxReceiveSize=4096
DisableNagle=0

Replace <IP_OF_PC1> with the IP address of the PC running MSFS2024.

Place SimConnect.cfg in the same folder as the .exe file.

Run the SimLink EXE

The application should:

• Load the SimConnect.cfg
• Connect to MSFS on PC1 via SimConnect
• Start interacting with simulator data

If it doesn’t connect:

• Check that both PCs are on the same subnet
• Ping PC1 from PC2 to confirm visibility
• Temporarily disable firewall on PC1 to isolate firewall issues
• Use tools like netstat to check if MSFS is listening on port 500