Just a shot in the dark here, but is the Dell Opticon running the latest version of Windows 10? If so, the problem could be caused by the fact that Windows 10 removes support for the SMBv1 network protocol after a while. See this post:
Just a shot in the dark here, but is the Dell Opticon running the latest version of Windows 10? If so, the problem could be caused by the fact that Windows 10 removes support for the SMBv1 network protocol after a while. See this post: