Hi Eileen. I'm Greg, 10 years awarded Windows MVP, here to help you.
USB hubs are notoriously finicky. It often requires a powered hub. Here is how to troubleshoot it:
https://www.rshtech.com/blog/how-to-quickly-fix...
https://www.instructables.com/USB-Hub-Quit-Work...
https://forums.tomshardware.com/threads/usb-hub...
https://superuser.com/questions/1699269/why-do-...
https://atolla.us/blogs/news/troubleshooting-us...
https://buyersguide.org/usb-hub/t/powered?m=b&a...
https://www.youtube.com/watch?v=GbSN0e2taTg
https://www.youtube.com/watch?v=WtTg6pHP9FA
Report back results for each step so I know what else to suggest.
Feel free to ask back any questions. Based on the results you post back I may have other suggestions if necessary.
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