Hi, thanks if anyone can help with this, I'm going round in circles!

I have a USB drive shared on the back of my router.

It always worked until I upgraded to Catalina.

Now I can access it via FTP but don't seem to have permission to change any files on it.

When I try to adjust the permissions for the share I just get "The operation can't be completed because you don't have the necessary permissions."

I've tried to rectify the permissionissue using the first fix described here; https://www.fireebok.com/resource/ho...on-on-mac.html and I have also done it from an admin user account before.

I have setup the FTP sharing via System Preferences but that doesnt seem to help.

I'm actually considering getting a hard disc NAS instead but that seems overkill for what I need.

Thanks for any ideas!