Have you tried using an ip address instead of a name in your source? Maybe just try adding a path substitution to your advancedsettings.xml file to test…
<advancedsettings>
<pathsubstitution>
<substitute>
<from>smb://LACROSSE/</from>
<to> smb://192.168.1.55/</to>
</substitute>
</pathsubstitution>
</advancedsettings>
NOTE: You would need to find what the IP address of your server is and change the <to> line to reflect the correct address. Also you said you were trying to browse to a SMB path. Browsing this way only works with SMBv1 (not recommended) and I think some people have posted that a recent Win10 update disabled the SMBv1 (not recommended) that they had manually enabled. If you really want to use SMBv1 (not recommended) then you might check in Windows to see if it is still enabled.