0x800CCC92OfficeHigh
Error 0x800CCC92 — POP3 Logon Failed | Microsoft Office Fix
Microsoft 365Office 2021Office 2019Office 2016
What Does 0x800CCC92 Mean?
The POP3 server rejected the login attempt. The username or password is incorrect or the account is locked.
Real-World Causes
- 1Incorrect email password (recently changed)
- 2Username format wrong (may need full email address)
- 3Account locked after too many failed attempts
- 4Two-factor authentication enabled but app password not used
Symptoms
- ⚠Repeated password prompts in Outlook
- ⚠Cannot receive any emails
- ⚠Error message citing authentication failure
- ⚠Account appears connected but no emails download
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DIY Fix
Beginner-friendly steps you can try at home
- 1Verify your password by logging into webmail
- 2Re-enter password in Outlook account settings
- 3Use full email address as username if required
- 4Generate an app-specific password if 2FA is enabled
Advanced Fix
For experienced users and IT professionals
- 1Remove and re-add the email account in Outlook
- 2Clear cached credentials in Windows Credential Manager
- 3Check with email provider if account is locked or restricted
- 4Enable 'less secure apps' if required by your provider (Gmail)
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Frequently Asked Questions
Why does Outlook keep asking for my password?
Common causes: password changed on the server, cached credentials corrupted, 2FA enabled without app password, or OAuth token expired. Try removing the account from Credential Manager and re-entering credentials.
What is an app password?
An app password is a special one-time password generated for applications that don't support modern authentication (OAuth). If your email has 2FA enabled, generate an app password in your email provider's security settings.
Related Error Codes
About the Author
Windows Troubleshooting Team
Verified against official Microsoft documentation and real-world diagnostic data. Error behavior confirmed across Windows 10, Windows 11, and Windows Server.