I keep losing connection to server

[Swandive stream]

When I try to upload to my website server (FTP) I keep getting drop-outs like this:

I was able to use FileZilla to access the server fine so I don't know what is causing the issues but it seems to be a Dreamweaver issue. I have given Dreamweaver access through the firewall (Windows Defender) to no effect. Temporarily disabling the firewall also didn't resolve it.

The website (very crude, I know) is https://uploading.fastertrack.com/

I'm using the latest version of Dreamweaver available (21.3)

[Jon Fritz]

Have you tried everything here:

https://helpx.adobe.com/dreamweaver/kb/troubleshoot-ftp-issues-dreamweaver-cs6-cc.html 

...especially toggling Use Passive FTP and FTP Performance Optimization (toward the bottom of the page)?

[Nancy OShea]

Time outs can happen when Dreamweaver is idle.  For security reasons, I disconnect from my server when I'm editing locally.  And then reconnect manually when I'm ready to transfer files to the server.

If your server is timing out during transfers, that could be a problem with your internet connection.

[Swandive stream]

I find it discconnects after ~5 minutes

[Nancy OShea]

So does mine if it's left idle.

[Swandive stream]

The trouble is it's not even idle, it's every few minutes. It's like when a wire won't stay connected properly (phone charger) so it keeps cutting out.

[Nancy OShea]

Can you revert to the previous DW version 21.2?

Or can you use another S/FTP client?