MD-DL-0 appears when a game or Unreal Engine install times out during download. Epic's official fix increases the launcher HTTP timeout — also check disk space, VPN, and cache.
Usually client-sideLast verified: 2026-06-11
Official timeout fix
Edit DefaultEngine.ini in the launcher Portal\Config folder — change HttpTotalTimeout from 30 to 500, save, restart the launcher, then retry the install.
MD-DL-0 on slow connections
Large manifest downloads can exceed 30 seconds on slow or VPN-throttled links — disable VPN and use wired Ethernet if possible.
How to fix step by step
- 1Free disk space on the install drive.
- 2Disable VPN and retry the download.
- 3Increase HttpTotalTimeout to 500 in DefaultEngine.ini (Epic official fix).
- 4Clear Epic Launcher web cache.
- 5Run the launcher as administrator.
- 6Reinstall the Epic Games Launcher if the error persists.
How MD-DL-0 differs from related codes
- Error AS-0: Epic Games Launcher could not reach account services. (server or client)
- Error AS-3: The Epic Games Launcher could not connect to Epic services or complete authentication. (server or client)
- Error LS-0013: Epic Games login services failed with LS-0013. (server or client)