try removing saved network credentials : control panel , credential manager
disabling homegroup service (I think thats no longer a thing in new build of Win10 ?)
try removing the share , then re-add that same share
try making a new shared folder , just as a test.
try this , in a cmd box(run as admin)
net use s: \\pcname\sharefoldername
or
net use s: \\pcname\sharefoldername /user

cname\username password (or /user:username password)
forum is changing above txt to smilies , so /user : pcname \ username , without spaces in that bit
Bookmarks