Fix: MSFS 2020 Image Server Binding Error

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Bug: Image server failed to bind to address

Experiencing issues with the MSFS 2020 map enhancement mod? Let's dive into fixing that pesky "Failed to bind to address" error. This guide will walk you through troubleshooting steps, ensuring you can get back to seamless flying. We'll cover common causes, potential solutions, and how to interpret diagnostic results to pinpoint the problem. So, buckle up, and let's get started!

FAQ Confirmation

  • [x] I have read the FAQ document and confirmed my issue is not already addressed there.

Describe the bug

After updating to version 9.0.6, users are encountering the following error:

Operation Failed An error occurred while processing your request: Can't start the image server Failed to bind to address https://0.0.0.0:443: address already in use.

This error prevents the image server from starting, disrupting the map enhancement functionality. Let's find out what could be the potential causes and workarounds to solve this issue.

Understanding the Error

The error message "Failed to bind to address https://0.0.0.0:443: address already in use" indicates that another application is already using port 443 on your system. Port 443 is commonly used for HTTPS (secure HTTP) traffic. When the MSFS 2020 map enhancement mod tries to start its image server, it needs to bind to this port. If another service is already bound to it, the mod will fail to start.

Common Causes

  1. Conflicting Applications: Other applications running on your system might be using port 443. Common culprits include web servers (like Apache or Nginx), other services that use HTTPS, or even other instances of the same mod.
  2. Firewall Issues: Your firewall might be blocking the MSFS 2020 map enhancement mod from accessing port 443. Firewalls are designed to protect your system by controlling network traffic, and sometimes they can inadvertently block legitimate applications.
  3. Antivirus Software: Similar to firewalls, antivirus software can also interfere with network connections. Some antivirus programs have built-in firewalls or network monitoring tools that might block the mod from binding to port 443.
  4. Multiple Instances: Running multiple instances of the MSFS 2020 map enhancement mod can cause conflicts. Each instance tries to bind to the same port, leading to the "address already in use" error.
  5. Incorrect Configuration: Although less common, incorrect configuration settings within the mod or your system's network settings can also cause this issue.

MSFS version

Steam / MSFS 2020

Mod version

9.0.6

Device ID

Q8FX12TM5YX7Y3NPZFSHEG5XSZRHVAPQM0QVH7QTPBKTFWXS183G

Screenshots

After having installed the latest version 9.0.6 I have this error each time I'm starting the service:

Operation Failed An error occurred while processing your request: Can't start the image server Failed to bind to address https://0.0.0.0:443: address already in use.

My map settings are:

PRIMARY MAP Hybrid Map (Pro)

FALLBACK MAP Google Map 2

I tried all maps with the same result. I runned the diagnostic and this is the result:

Starting network diagnostics to Microsoft servers... Testing MSFS2020 Server khstorelive.azureedge.net ... Server IP: 127.0.0.1 Test: Success! Response size: 1202fMB, Speed: 412fMB/s Result: Response size: 1202fMB, Total time: 2,9s, Average speed: 412fMB/s

Testing Map Tile Server kh.ssl.ak.tiles.virtualearth.net ... Server IP: 127.0.0.1 Test: Success! Response size: 2fMB, Speed: 2fMB/s Result: Response size: 2fMB, Total time: 0,3s, Average speed: 2fMB/s

Testing MSFS2024 Server sunriseworld.akamaized.net ... Server IP: 127.0.0.1 Test: Success! Response size: 182fMB, Speed: 282fMB/s Result: Response size: 182fMB, Total time: 0,7s, Average speed: 282fMB/s

Starting tests for map sources accessibility and speed... Testing Map source: AppleMap ... Server IP: 184.30.126.204 Test: Success! Response size: 2fMB, Speed: 2fMB/s Result: Response size: 2fMB, Total time: 0,3s, Average speed: 2fMB/s

Testing Map source: ArcGIS ... Server IP: 18.164.78.43, 18.164.78.117, 18.164.78.45, 18.164.78.32 Test: Success! Response size: 2fMB, Speed: 2fMB/s Result: Response size: 2fMB, Total time: 0,4s, Average speed: 2fMB/s

Testing Map source: BingMaps ... Server IP: 23.40.207.72, 23.40.207.35 Test: Success! Response size: 2fMB, Speed: 2fMB/s Result: Response size: 2fMB, Total time: 0,4s, Average speed: 2fMB/s

Testing Map source: ChinaHD2021 ... Server IP: 218.12.76.152, 218.12.76.154, 218.12.76.155, 218.12.76.156 Test: Success! Response size: 2fMB, Speed: 2fMB/s Result: Response size: 2fMB, Total time: 1,0s, Average speed: 2fMB/s

Testing Map source: ChinaHD2022 ... Server IP: 218.12.76.152, 218.12.76.154, 218.12.76.155, 218.12.76.156 Test: Success! Response size: 2fMB, Speed: 2fMB/s Result: Response size: 2fMB, Total time: 0,3s, Average speed: 2fMB/s

Testing Map source: ChinaHD2023 ... Server IP: 218.12.76.152, 218.12.76.154, 218.12.76.155, 218.12.76.156 Test: Success! Response size: 2fMB, Speed: 2fMB/s Result: Response size: 2fMB, Total time: 0,3s, Average speed: 2fMB/s

Testing Map source: ChinaHD2024 ... Server IP: 49.7.208.43 Test: Success! Response size: 2fMB, Speed: 2fMB/s Result: Response size: 2fMB, Total time: 1,7s, Average speed: 2fMB/s

Testing Map source: EOX ... Server IP: 92.42.98.96 Test: Success! Response size: 2fMB, Speed: 2fMB/s Result: Response size: 2fMB, Total time: 0,7s, Average speed: 2fMB/s

Testing Map source: GoogleMapsServer1 ... Server IP: 64.233.185.138, 64.233.185.100, 64.233.185.102, 64.233.185.113, 64.233.185.139, 64.233.185.101 Test: Success! Response size: 2fMB, Speed: 2fMB/s Result: Response size: 2fMB, Total time: 0,5s, Average speed: 2fMB/s

Testing Map source: GoogleMapsServer2 ... Server IP: 64.233.185.139, 64.233.185.101, 64.233.185.102, 64.233.185.100, 64.233.185.113, 64.233.185.138 Test: Success! Response size: 2fMB, Speed: 2fMB/s Result: Response size: 2fMB, Total time: 0,2s, Average speed: 2fMB/s

Testing Map source: GoogleMapsServerFree ... Server IP: 64.233.185.138, 64.233.185.100, 64.233.185.102, 64.233.185.113, 64.233.185.139, 64.233.185.101 Test: Success! Response size: 2fMB, Speed: 2fMB/s Result: Response size: 2fMB, Total time: 0,1s, Average speed: 2fMB/s

Testing Map source: MapboxPro ... Server IP: 13.225.143.49, 13.225.143.21, 13.225.143.29, 13.225.143.84 Test: Error: Response status code does not indicate success: 401 (Unauthorized).

Unable to generate test URL for map source CustomMap1

Unable to generate test URL for map source CustomMap2

Unable to generate test URL for map source CustomMap3

==== Failed Tests Summary ==== ❌ Map source: MapboxPro - HTTP request error: Response status code does not indicate success: 401 (Unauthorized).

Total of 1 tests failed

Diagnostic complete! If tests showed errors, it means the network is unstable or has issues. If you've configured a proxy server, please ensure it's connected correctly. If server download speeds are slow (except for map tile servers), this may affect map and game loading speeds. Try configuring a proxy server in settings, or use a VPN to resolve access issues.

Everything was working fine with previous version 9.0.5. Thank you for your kind help in this matter!

Alex

Analyzing the Diagnostic Results

The diagnostic results provide valuable insights into the issue. Here's a breakdown:

  • Microsoft Servers: All tests to Microsoft servers (MSFS2020, Map Tile Server, MSFS2024) were successful. This indicates that your system can connect to Microsoft's servers without any issues.
  • Map Sources: Most map sources (AppleMap, ArcGIS, BingMaps, ChinaHD2021, ChinaHD2022, ChinaHD2023, ChinaHD2024, EOX, GoogleMapsServer1, GoogleMapsServer2, GoogleMapsServerFree) also tested successfully. This suggests that your system can access these map sources.
  • MapboxPro: The test for MapboxPro failed with a 401 (Unauthorized) error. This indicates that there might be an issue with your MapboxPro account or API key. You might need to check your MapboxPro credentials and ensure they are correctly configured.
  • Custom Maps: The diagnostic tool was unable to generate test URLs for CustomMap1, CustomMap2, and CustomMap3. This could be due to incorrect configuration of these custom map sources. Verify that the URLs and settings for these custom maps are correct.

Troubleshooting Steps

Now that we understand the error and have analyzed the diagnostic results, let's move on to the troubleshooting steps.

  1. Identify Conflicting Applications:

    • Close Unnecessary Applications: Start by closing any applications that might be using port 443. This includes web servers, other mapping applications, or any software that uses HTTPS.
    • Use Resource Monitor: Open the Resource Monitor (search for "Resource Monitor" in Windows) and go to the "Network" tab. Look for processes that are listening on port 443. Identify and close any unnecessary processes.

  2. Check Firewall Settings:

    • Windows Defender Firewall: Go to "Windows Defender Firewall" in the Control Panel. Click on "Allow an app or feature through Windows Defender Firewall." Make sure that the MSFS 2020 map enhancement mod is allowed to communicate through the firewall. If it's not listed, add it manually.
    • Third-Party Firewalls: If you're using a third-party firewall (like McAfee or Norton), check its settings to ensure that the MSFS 2020 map enhancement mod is allowed to access port 443. You might need to create a rule to allow the mod to communicate through the firewall.

  3. Disable Antivirus Software Temporarily:

    • As a test, temporarily disable your antivirus software and see if the error persists. If the error disappears, it indicates that your antivirus software is interfering with the mod. In this case, you'll need to configure your antivirus software to allow the MSFS 2020 map enhancement mod to run without interference.

  4. Ensure Only One Instance is Running:

    • Make sure that you're not running multiple instances of the MSFS 2020 map enhancement mod. Close all instances and restart the mod.

  5. Verify MapboxPro Credentials:

    • Since the diagnostic results showed a 401 (Unauthorized) error for MapboxPro, double-check your MapboxPro API key and ensure it's correctly configured in the mod settings. If you're unsure, try generating a new API key and updating the settings.

  6. Check Custom Map Configurations:

    • Verify that the URLs and settings for your custom maps (CustomMap1, CustomMap2, CustomMap3) are correct. Ensure that the URLs are accessible and that the settings are properly configured in the mod.

  7. Restart Your Computer:

    • Sometimes, a simple restart can resolve conflicts and clear up any temporary issues. Restart your computer and try running the mod again.

  8. Reinstall the Mod:

    • If none of the above steps work, try reinstalling the MSFS 2020 map enhancement mod. This can help resolve any corrupted files or configuration issues.

Additional Tips

  • Run as Administrator: Try running the MSFS 2020 map enhancement mod as an administrator. This can give the mod the necessary permissions to bind to port 443.
  • Check for Updates: Make sure that you're running the latest version of the MSFS 2020 map enhancement mod. Updates often include bug fixes and improvements that can resolve compatibility issues.
  • Consult the Documentation: Refer to the mod's documentation for specific troubleshooting steps and configuration instructions.

Conclusion

The "Failed to bind to address" error can be frustrating, but with a systematic approach, you can identify and resolve the issue. By following the troubleshooting steps outlined in this guide, you should be able to get the MSFS 2020 map enhancement mod working smoothly. Remember to check for conflicting applications, firewall settings, antivirus software, and incorrect configurations. Good luck, and happy flying! If you're still encountering issues, consider reaching out to the mod's support community for further assistance. They might have specific insights or solutions based on other users' experiences.

Latitude and Longitude of the bug area

No response

Additional context

No response