"\\readyshare is not accessible. You might not have permission to use this network resource. Contact the administrator of this server to find out if you have access permissions. A specified logon session does not exist. It may already have been terminated."
I suspect a security settings was causing an error so I checked the Windows firewall and found my desktop's Wi-Fi connection had the public "profile" applied (Windows Key + S then search for "windows firewall")...
I prefer for this to be set to private for my home network so I went into settings (Windows Key + I), clicked Network & Internet, clicked Wi-Fi, clicked my Wi-Fi connection, and enabled "Make this PC discoverable".
My "ReadyShare" is now accessible after the profile change!