After upgrading Mac OS X to high sierra, SMB connections started returning authentication error. If I use it on other computer (using el capitan), it smb connection works fine with my username and password. Was wondering if anyone else has faced similar issue.
My experience is 10.13.4 broke things.
I have 2 macs, the iMac is running 10.13.3 and logs into the freenas server just fine. The mini was running 10.13.3 and then upgraded to 10.13.4 and it will not login to the freenas server on my normal share.
Needless to say I have switched off all OS upgrades on the machine running 10.13.3. I can login to the Freenas from the mini if I use the guest account but I'd rather not use that.
Yes, I was and am having similar issues.
I have a MacBookPro (macOS 10.13.6) trying to access file shares on a MacMini (also 10.13.6). With SMB file sharing turned on, in Sharing Preferences on the MacMini (with or without AFP sharing on), double-clicking the MacMini from the Finder on the MacBookPro produces a "Connecting... Not Connected" message, and all attempts to "Connect As" fail. If I turn SMB file sharing off, and AFP file sharing on, I connect fine: either manually, or automatically with my user name and password in the MacBookPro keychain.
I have had this issue before macOS High Sierra, starting with perhaps 10.10 or 10.11. I just turned off SMB sharing, and AFP worked fine. Starting around then, the time to connect to the MacMini increased significantly (30+ seconds). I could never isolate or fix the slow connecting problem. In the past, I have had some luck connecting with my Apple ID instead of as a Registered User, but that doesn't seem to be working now.
I am continuing to look for a solution to the problem, but you are not alone.