Full Factory Restore now at 62+ hours!

What you write makes sense, Captain. The LED was steady blue before the restore process, then went out and is now steady.
I’ll try that tonight and report results. By “force refresh”, I assume you mean F5, yes?

When I access the router directly via its IP address, it shows the My Cloud drive as an attached device. It also shows that drive is using the same IP address it did before I began the restore process.
Because I have been unable to connect to the drive directly using that IP address, I assumed the drive had not yet completed the restore process. Perhaps I was mistaken.