Unable to connect to Windows FTP Server

Hi all. I'm hoping somebody can point in the right direction, or walk me through steps to troubleshoot this issue.

I set up an FTP server on a windows 10 desktop using the built-in Windows FTP service capabilities.
Everything was working fine.

Today I attempted to access the FTP Server, both through a web browser and through file explorer, but without success.
Through a web browser it times out, and through file explorer it prompts me for authentication but shows an empty root folder.

So far I have done the following:

*Reset all network settings using NetAdapterRepair1.2
*Checked Windows Firewall settings - FTP allow option is checked
*Checked that ESET firewall is NOT activated
*Re-assigned the same static IP address from before running NetAdapterRepair
*Checked port-forwarding rule on modem-router - set to FTP service with port 21
*Checked system file integrity - SFC /scannow - no integrity violations
*Checked the Windows 10 image - DISM /Online /Cleanup-Image /RestoreHealth - completed successfully
*Checked the FTP settings through IIS manager - can't find anything wrong
*Attempted to connect to the FTP server with all security apps turned off - ESET Smart Security, MBAM, MBAE, Windows and ESET Firewall -all turned off. Previously when all these were running I had no issue connecting to the server.

It is important to note 2 things:
1) Along with the FTP issue I can no longer connect to the computer in mention through windows RDP
2) This all seems to have started after I made a mistake with the process of replacing a drive in my Windows storage pool. It has since been corrected. The FTP folder is located in a storage space within that pool. Locally all files and folders are accessible.

Free atomic fireballs for whoever helps me solve this!

I don't see where you pinged the FTP machine remotely. Also, when you turned off the ESET Firewall, is there a chance the Windows firewall is now active?