Now getting FTP proxy warning error when trying to access Android

I have a network location shortcut which directs to my Android mobile phone using FTP. I used to be able to start the FTP server on my phone and then click on that shortcut to access the file system on my phone. Now when I click on this shortcut I get an error about an incorrectly configured FTP proxy. This started happening after a recent Windows update but I don't know for sure that this is the cause.

I've tried this with the ES File Explorer app (now uninstalled because I read it's become sketchy) and the Amaze file explorer app. The error appears regardless whether the FTP server is even started on the phone. Clicking OK opens the MS App store for FTP programs but I just wanted to use Windows File Explorer to browse the folders like I used to.

Does anyone know how I can fix this or get around it using an entirely different approach to access files on an Android device over the local network?

I get the same warning now as I had to reinstall my windows 10 and now can not login via FTP on my smart phone.

Microsoft said there was a "hotfix" for this warning but I can not find it for the life of me.

I did however worked fine before I reinstalled my windows.

Any help would be great.