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When user returns to the office after working from home over the weekend, they get a message that states:
"Error
Something went wrong. [1001]"
Error Tag: 7ita9
Error Code: 3399811147
An additional message in Excel states the user cannot "upload or download changes because your cache credentials expired."
The user has a laptop and a desktop and uses the same credentials to work from both devices (typically not at the same time).
The user is able to function in the online version of Outlook when this error occurs but not the desktop app.
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(121.6, 11%, 21%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3ECM%3C/text%3E%3C/svg%3E)
Hi @Brian E. Peacher ,
Just checking in to see if above information was helpful. If it is useful, would you mind marking the helpful post as an answer? Which would benefit others who also has similar issues in forum.
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(192, 83%, 28%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EA%3C/text%3E%3C/svg%3E)
I had the same problem with an user account. The solution was found here:
https://learn.microsoft.com/en-us/microsoft-365/troubleshoot/authentication/automatic-authentication-fails
Download the Assistent and let it run - it fixed the problem.
Hi @Brian E. Peacher , Welcome to our forum!
According to the error you provided, looks like the issue is related to the credentials. Please create a new profile(Control Panel>Mail>Show Profiles>add) and add the account for testing to check if there are some differences.
In addition, i found a similar thread as yours, which mentioned the below information:
It's suggested that you could try to troubleshooting as mentioned in the thread.
Hope to help you!
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