How do I fix the 'Access remote image server' error in MSFS?
Fix the 'Access remote image server' error in MSFS Map Enhancement: update the mod, switch sources, and check VPN, firewall, DNS and cache.
In Microsoft Flight Simulator, the 'Access remote image server' error from MSFS Map Enhancement usually means the add-on cannot fetch tiles from its selected imagery provider. Update the add-on, test another source, disable VPN or proxy filtering, allow it through security software, clear its cache, and restart both the tool and MSFS.
What does the error actually mean?
The message means Map Enhancement could not retrieve imagery from the remote server it was configured to use. It is an add-on error, not a standard Microsoft Flight Simulator error.
The tool requests map tiles from a selected third-party imagery source and passes them to the simulator. A provider can change its addresses, request validation or access rules without anything changing on your PC. Local interference from a firewall, VPN, DNS filter, stale redirection or damaged cache can produce the same message.
- An older Map Enhancement build no longer matches the imagery provider.
- One source is unavailable, throttling requests or blocking the connection.
- A VPN, proxy, antivirus web shield or filtered DNS service is interfering.
- The tool's local proxy or hosts-file redirection did not start or stop correctly.
- Cached tiles or settings are stale.
- The Windows clock, DNS resolution or internet connection is faulty.
If the failure began suddenly and only one source is affected, a provider-side change is more likely than a damaged simulator installation.
I'm getting this error — what should I check first?
Check the add-on build and selected imagery source before changing Microsoft Flight Simulator itself.
- Install a compatible Map Enhancement build. Replace an outdated release with a build explicitly intended for your version of Microsoft Flight Simulator. MSFS 2020 and MSFS 2024 do not share every add-on requirement, so an application starting successfully does not prove that its interception method is compatible.
- Remove duplicate or mixed installations. Check that an old shortcut is not launching an earlier executable from another folder. Map Enhancement is commonly supplied as a separate helper application rather than an ordinary Community-folder package; put it in the Community folder only if its own installation instructions require that.
- Try another imagery source. If a second source works, the add-on and its local server are broadly functional. Leave the working configuration alone rather than reinstalling MSFS to repair one unavailable provider.
- Stop and reset the tool cleanly. Use the add-on's own Stop, Reset or restore function before closing it, then restart Windows. Reopen the helper using the privilege level required by that build and confirm that it has started before loading a flight.
- Disconnect VPNs and proxies. Fully disconnect them for the test; pausing a browser extension may not disable the system-wide tunnel. Also check parental controls, filtered DNS and HTTPS inspection, all of which can block tile requests while ordinary websites still work.
- Test Windows Firewall and antivirus protection. Allow the exact Map Enhancement executable or local service on the network profile Windows is using. If testing requires temporarily disabling a web shield, do so only long enough to identify the cause, avoid other browsing or downloads, and re-enable it immediately. A narrow application exception is safer than leaving protection disabled.
- Clear the add-on cache. Stop the helper first, then use its cache-clearing control if one is provided. Clearing the MSFS rolling cache can remove old scenery after connectivity is restored, but it does not repair an add-on that still cannot reach its server.
- Check Windows time and DNS. Set the date, time and time zone correctly because secure connections can fail when the clock is wrong. Restart the router and PC; if DNS results appear stale, running
ipconfig /flushdnsin Command Prompt clears the local DNS cache without changing your configured DNS provider. - Test MSFS without Map Enhancement. Restore the add-on's default mapping, close it, and load the simulator using its normal online world data. If default streamed scenery works, concentrate on the add-on rather than reinstalling the simulator.
Which fix matches this error?
The pattern of failures usually identifies whether the imagery source, local network or add-on installation is responsible.
| What happens | Likely cause | Best next step |
|---|---|---|
| Only one imagery source fails | Provider outage, changed access rules or source-specific blocking | Switch source and wait for an add-on update |
| Every source fails after an add-on update | Mixed files, old shortcut or incomplete replacement | Remove the old copy and perform one clean installation |
| Every source fails, but normal internet access works | Firewall, web filtering, local proxy, hosts entry or incompatible build | Reset the helper, check security rules and verify compatibility |
| It works on a different network | Router, DNS, ISP filtering or another home-network restriction | Restart the network equipment and inspect DNS or filtering settings |
| Default MSFS scenery works with the add-on disabled | Map Enhancement connection failure | Do not reinstall MSFS |
| Default online scenery also fails | Broader MSFS or internet connectivity problem | Troubleshoot the simulator's online services separately |
| The error is gone, but old or blank tiles remain | Stale cached imagery | Clear the add-on cache, then the rolling cache if necessary |
A mobile hotspot can provide a useful short network test, but imagery streaming may consume substantial data. Disconnect once you know whether the connection works.
Can a hosts-file or local proxy problem cause the error?
A stale hosts entry or failed local proxy can break Map Enhancement even when the remote imagery server is available.
Some builds redirect map requests through a service running on the same PC. If the application crashes or is force-closed, its redirection may remain while the local service is no longer listening. Reopen the tool and use its restore or Stop control rather than repeatedly ending it through Task Manager.
The Windows hosts file is located at C:\Windows\System32\drivers\etc\hosts. Do not delete or replace the entire file: it may contain entries belonging to other software. If the add-on cannot restore its changes, back up the file and remove only lines you can positively identify as having been created by Map Enhancement.
If the helper also reports that an address is already in use, a second copy or another local proxy may hold the required port. Close duplicate instances and restart Windows before changing any port settings. Do not install unverified certificates or paste random hosts entries as a workaround.
Do I need to reinstall Microsoft Flight Simulator?
No, reinstalling Microsoft Flight Simulator is rarely justified for this error.
If normal online scenery loads after Map Enhancement is disabled and its redirection is restored, the simulator installation is working. Reinstalling many gigabytes of simulator data will not repair an unavailable third-party imagery source, a blocked helper executable or an obsolete add-on build.
If the simulator's own streamed scenery and other online features also fail with the add-on fully disabled, treat that as a separate connectivity problem. Our Microsoft Flight Simulator troubleshooting answers cover broader loading, avionics and online-service faults.
I've tried all the fixes — what now?
If you have tried all the usual fixes, isolate the failure by testing one source, every source and then a second network.
What if only one image source is broken?
If only one source fails, use another source supported by the add-on and stop changing the rest of the installation.
This result points to the provider, its access rules or its compatibility with the installed build. There may be no remaining user-side fix until the provider recovers or Map Enhancement is updated. Repeated cache deletion and simulator reinstalls will not alter that server response.
What if every image source fails?
If every source fails, suspect the add-on build, local redirection or network filtering.
- Confirm that the shortcut opens the newly installed executable.
- Check for a second helper instance running in the background.
- Restore any hosts-file changes and restart Windows.
- Test briefly on another network.
- Check antivirus web protection as well as ordinary file scanning.
- Make sure the system clock and time zone are correct.
If every source still fails on a second network with one clean, compatible installation, the add-on probably no longer matches the remote servers' responses. Waiting for a corrected build is more sensible than making further changes to MSFS.
What if the error is fixed but scenery now stutters?
Once imagery is loading, pauses usually point to tile downloading, cache activity, storage or graphics settings rather than the original server-access error.
Test a less demanding imagery source or quality setting and compare it with default MSFS scenery. If pauses continue with the add-on disabled, use our steps for reducing MSFS stutters and micro-pauses instead of continuing to alter the Map Enhancement connection.