Windows 2012 R2 FTP server IIS 8 Passive mode not working

ftp server iis-8 windows2012 passive-mode
Pawel CU Kowalski picture Pawel CU Kowalski · Sep 29, 2016 · Viewed 9.3k times · Source

I have set up an FTP Server on Windows 2012 R2 using IIS 8 and everything workes fine except Passive Mode when connecting from client machines. How to fix it?

Answer

Pawel CU Kowalski picture Pawel CU Kowalski · Sep 29, 2016

It took me around 7 days to find answer and I wanted to share it with you as it might save you the same.

In my case this has helped: https://kb.plesk.com/en/128834

Specifically: Remove duplicated IP address from FTP Firewall Support in FTP site settings.

Turns out FTP Firewall Support is an option in two places - and it only needs to be in the general, server node, not site node. I removed the site one and viola!

More VERY helpful info I found on the way:

Setting up FTP: https://winscp.net/eng/docs/guide_windows_ftps_server There are more on Technet Microsoft but I can't paste more than 2 links here sadly.

Excellent Troubleshooting: Search on Youtube for "IIS FTP Troubleshooting-Week 48", videos by: DotNetSlackers. His videos from Week 44 cover FTP and are very good.

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