WIndows cannot connect to Device

I cannot get this dumb operating system to recognize my NAS.

It was working JUST FINE, I had the public and private paths mapped, and all of a sudden refused to connect.

Windows can see it just fine in file explorer, but clicking on it displays the following error

stupidcomputer1

I can access the stupid NAS just fine via my browser and IP address, and my router can see that it is connected.

WTH is going on here!?!?!?

God, I hate WINDOWS

Windows decided to SCREW UP my credentials.

SOLUTION:
Control Panel\User Accounts\Credential Manager
Delete the windows credential for your NAS
Then try to reconnect via File Explorer