Why does Outlook keep asking for my password even though it's correct?

Usually a saved credential mismatch. Windows Credential Manager stores an old password separately from Outlook's own login prompt. Clear the saved Outlook entries there, then sign in fresh, and the repeated prompts stop.

Why can't I sign into Outlook on my phone but it works fine on my PC?

The mobile app is likely still using an old sign-in token that hasn't refreshed. Remove the account from the Outlook mobile app entirely and add it again, rather than just re-entering the password in the existing account entry.

Does changing my Microsoft account password fix Outlook login problems?

Only if the login problem is caused by an actually wrong or expired password. If Outlook is stuck on an old cached credential, changing the password again doesn't help; you need to clear the saved credential first, then sign in with whichever password is current.

Why does Outlook say my account is locked when I can log into Outlook.com fine?

Outlook desktop sometimes caches an old lockout state even after the account unlocks on Microsoft's side. Sign out completely, clear cached credentials, and sign back in rather than just retrying the same login window.

Outlook Email Login Problems: How to Fix Sign-In Errors That Keep Coming Back

Outlook rejecting a password you know is correct, asking for it over and over, or throwing a vague sign-in error, is one of the most common Outlook complaints. The account itself is almost never actually broken. Something cached on your device is out of sync with what Microsoft has on file.

I've walked through this with several people whose Outlook worked fine everywhere except one device, which is the biggest clue: if Outlook.com works in a browser but the desktop app or phone app doesn't, the problem lives on that device, not the account.

Why does Outlook keep asking for my password on repeat?

A saved credential in Windows is out of date and Outlook keeps trying it silently before showing you the prompt again. This creates a loop: you type the correct password, Outlook accepts it briefly, then the old cached one takes over again on the next sync attempt.

To break the loop:

Press Windows key, type "Credential Manager," and open it.
Click "Windows Credentials."
Look for entries containing "MicrosoftOffice" or your email address.
Remove each one related to Outlook or your Microsoft account.
Restart Outlook and sign in fresh when prompted.

This clears the stale cache instead of fighting it every time Outlook tries to sync.

Why does Outlook say "something went wrong" with no real explanation?

This generic error usually means Outlook's local profile got corrupted, often after an abrupt shutdown or an update that interrupted mid-sync. The account itself is fine; the local Outlook profile tracking it isn't.

To fix it, create a new Outlook profile rather than repairing the broken one:

Go to Control Panel, then Mail (32-bit), then Show Profiles.
Click Add and create a new profile with the same email address.
Set the new profile as default.
Open Outlook. It should connect cleanly using the new profile.
Once confirmed working, delete the old broken profile from the same Show Profiles screen.

How do I fix Outlook login problems on my phone specifically?

Remove the account entirely and add it back, rather than re-entering the password in the existing entry. Mobile apps cache authentication tokens separately from the password itself, and re-typing the password doesn't always refresh that token.

Open the Outlook app, go to Settings, then tap your account.
Choose Delete Account (this removes it from the app only, not from Microsoft).
Restart the app and add the account fresh.
Complete any two-step verification prompt that appears; this is normal on a fresh sign-in.

Why does Outlook show "account locked" when I can sign in fine on the web?

Outlook desktop and mobile cache a lockout state from an earlier failed attempt, and that cached state doesn't always clear automatically once the account unlocks on Microsoft's end.

Sign out of Outlook completely rather than just closing the window, clear the saved credential through Credential Manager as described above, then sign back in. This forces Outlook to check the account's actual current status instead of relying on what it remembered from before.

How do I tell if this is a password problem or a two-step verification problem?

If Outlook.com in a browser also rejects the same password, it's a genuine password issue: reset it through account.live.com/password/reset. If Outlook.com accepts the password fine but the Outlook app still fails, it's almost always a two-step verification or app-password issue instead.

Some Outlook configurations, especially older ones set up before two-step verification was enabled, need an app-specific password rather than your normal account password. Generate one from your Microsoft account's security settings if the app keeps failing despite a correct regular password.

Should I use an app password for Outlook instead of my regular password?

Yes, if your account has two-step verification enabled and Outlook keeps failing despite a correct password. Regular passwords don't work for apps that don't support the two-step verification prompt directly, which includes some older versions of desktop Outlook.

Generate an app password at account.live.com under Security, then use that string (not your regular password) when Outlook's login screen asks. Save it somewhere secure since it's shown only once at creation.

Why does Outlook work at home but not on my work network?

Some corporate and school networks block the ports or authentication methods Outlook needs, especially on public Wi-Fi or networks with strict firewalls. This shows up as a login that hangs indefinitely rather than a clear error message.

To confirm it's the network:

Try signing in over your phone's mobile data instead of the Wi-Fi network in question.
If it works over mobile data, the network is the problem, not your account or password.
Ask whoever manages that network to allow the standard Outlook/Exchange ports, or use Outlook on the web through a browser instead, which usually only needs standard HTTPS access.

Why did Outlook suddenly log me out on every device at once?

A password reset or a security event (like Microsoft detecting unusual sign-in activity) forces every signed-in device to reauthenticate at the same time. This is expected behavior, not a bug, and it's actually a good sign that Microsoft's security systems are working.

Sign back in on each device individually. If you didn't reset your password yourself and don't recognize the reason for the sign-out, check your account's recent activity at account.live.com under Security, since this pattern sometimes follows an unauthorized sign-in attempt that Microsoft blocked.

How do I know if Outlook itself is down instead of my account?

Check whether the problem is widespread before spending time troubleshooting your own device. A large-scale Outlook or Microsoft 365 outage looks identical to an individual account problem from the user's side: sign-in just fails or hangs.

Search for "Outlook down" or check Microsoft's official service status page. If reports are widespread and recent, wait it out rather than resetting passwords or clearing credentials, since none of that will fix a server-side outage on Microsoft's end.

A quick checklist for Outlook login problems

Clear saved credentials in Windows Credential Manager before trying anything else.
Create a fresh Outlook profile instead of repairing a corrupted one.
On mobile, delete and re-add the account rather than re-typing the password.
Confirm whether Outlook.com works in a browser first; that tells you if it's a password problem or a caching problem.
Generate an app-specific password if two-step verification is enabled and the regular password keeps failing.

Most Outlook login loops trace back to something cached on the device, not the account itself. Clear the stale credential first, before touching the password.