Hello Samid,
Sorry there are so many people not really searching before asking...
I do not think this alert is coming from SSFS connection mechanism (that is not ok as sap is connecting using default passwords).
From my experience this kind of error on Windows was most of the time related to network.
Have you checked that message service port is declared in %windir%\system32\drivers\etc\services
=> sapmsSM1 3601/tcp
Regards