Can't upload more than a few hundred files at a time to passport with web interface

I have a WD 4TB My Cloud Personal Network Attached Storage - NAS - WDBCTL0040HWT-NESN, P/N W0BCTL0040HWT.

My OS is Ubuntu 18.04, with AMD Threadripper 2990X CPU.

When I upload a small amount of files (couple hundred, sometimes far less) files to files.mycloud.com, it works fine. When I upload more, it stalls out.

Is there a way to upload a lot of files without stalling out?

Hi @dpmcgonigle,

Please refer below link to check My Cloud OS 5: Error Uploading Large Files in Web App:
https://support-en.wd.com/app/answers/detail/a_id/29777