Apple ID Login: "An unknown error has occured."

I got a new MacBook (handed over from someone else) and if I try to use my Apple ID on that new device I repeatedly get an error. I am 100% sure of the password as I used it to log on the support site (with this new MacBook).


I could also log on the iCloud site on which I can see this new MacBook. When I logged on there it did ask me for a code that I got on my old MacBook.


Any ideas what's going on?

MacBook Pro 15", macOS 10.15

Posted on Jan 27, 2020 4:17 AM

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Question marked as Top-ranking reply

Posted on Jan 27, 2020 11:54 AM

Are you running any anti - virus programs? Using a VPN?


Try setting up another admin user account in System Preferences/Users & Groups to see if the same problem continues. Please post back on whether or not this worked. Also try the Safe Mode. Please post back on whether or not this worked.


Isolating an issue by using another user account 


Safe Mode - About


If it works in the Safe Mode, try running this program when booted normally and then copy and paste the output in a reply. The program was created by Etresoft, a frequent contributor.  Please use copy and paste as screen shots can be hard to read. Click “Share Report” button in the toolbar, select “Copy to Clipboard” and then paste into a reply. This will show what is running on your computer. No personal information is shown. If the log won’t post, try posting it in Pastebin and provide a link in a reply. After pasting the report in a PasteBin page, go to the top of the page, and copy the address in the URL bar. Paste that in a new reply.        Pastebin


Etrecheck – System Information


Web site version if required.  https://etrecheck.com

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4 replies
Question marked as Top-ranking reply

Jan 27, 2020 11:54 AM in response to isbart

Are you running any anti - virus programs? Using a VPN?


Try setting up another admin user account in System Preferences/Users & Groups to see if the same problem continues. Please post back on whether or not this worked. Also try the Safe Mode. Please post back on whether or not this worked.


Isolating an issue by using another user account 


Safe Mode - About


If it works in the Safe Mode, try running this program when booted normally and then copy and paste the output in a reply. The program was created by Etresoft, a frequent contributor.  Please use copy and paste as screen shots can be hard to read. Click “Share Report” button in the toolbar, select “Copy to Clipboard” and then paste into a reply. This will show what is running on your computer. No personal information is shown. If the log won’t post, try posting it in Pastebin and provide a link in a reply. After pasting the report in a PasteBin page, go to the top of the page, and copy the address in the URL bar. Paste that in a new reply.        Pastebin


Etrecheck – System Information


Web site version if required.  https://etrecheck.com

Jan 27, 2020 5:24 AM in response to isbart

It sound like you have a two-factor authentication (TFA) problem. I

don't have a great solution possibility for you. But, I try signing

with it on more sites that require signing in with your Apple

ID, for example, Apple.com. You want to find a way to trust the

new machine I think. Here are two reads on TFA. They don't

provide possible solutions though.


https://support.apple.com/en-us/HT204974

https://support.apple.com/en-us/HT204915

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Apple ID Login: "An unknown error has occured."

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