File Sharing sometimes fails in macOS High Sierra after installing Security Update 2017-001. This should fix it...
Open the Terminal application (in Utilities folder, inside Applications folder). Enter this command: sudo /usr/libexec/configureLocalKDC Hit the return key. Enter your administrator password to authenticate with sudo. Quit out of Terminal.
Now try an AFP or SMB file sharing connection, which should now work.
My latest blog post: A Different View: People whose ideas differ aren't bad, they just have a different view. (posted 2025-07-22). Warning: mysqli_connect(): (HY000/1040): Too many connections in /Library/WebServer/Documents/Owen2/Inc/Footer.m.inc.php on line 51
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