• Passive mode for FTP is not enabled on your server or too few passive FTP ports are opened. Please enable it and try again. Make sure that all used passive FTP ports are white listed in server firewall.
• Make sure that there is enough simultaneous FTP connections from one IP allowed on server.


For On-Premises brand only:

• To fix issue, you can try increasing limit number of FTP connection retries in website builder configuration:
  • Open file "config.json" located in website builder base folder
  • Add parameter "ftpConnectionRetriesAllowed" (or edit if it already exists), e.g.,:
    "ftpConnectionRetriesAllowed": 20,
  • Save "config.json" file

Open website builder again and re-publish website to check if the error was resolved.