not sure if this has been suggested as it says there are 6 comments, but none showing here. Try creating a new user account, share out a folder, and see if that works for scanning. If so, you know that there is something hooky going on with the user account (corruption?). As for a fix, yo9u can try going through local security policies to see if something in there (from an updated etc..) got switched, specifically the settings that effect SMB.
Try creating a new user account
not sure if this has been suggested as it says there are 6 comments, but none showing here. Try creating a new user account, share out a folder, and see if that works for scanning. If so, you know that there is something hooky going on with the user account (corruption?). As for a fix, yo9u can try going through local security policies to see if something in there (from an updated etc..) got switched, specifically the settings that effect SMB.
HTH