Outlook 'Something went wrong' Gmail fix that actually works

You're not crazy—this error is common

You try to add your Gmail account to Outlook. You type your email, click Connect, and boom—'Something went wrong' with no details. I've seen this on Outlook 2016, 2019, 2021, and even Microsoft 365. It's not your fault. It's Google blocking the old way Outlook tries to log in.

The real fix: use an app password

Skip messing with settings in Outlook. The problem is Google's two-factor authentication (2FA). If you have 2FA on (and you should), Outlook can't use your normal password. So you need a special app password.

1. Go to your Google Account: myaccount.google.com
2. Click Security on the left.
3. Under 'Signing in to Google,' find App passwords. If you don't see it, turn on 2FA first.
4. At the bottom, click Select app and pick Mail. Then Select device and pick Other—type 'Outlook'.
5. Google gives you a 16-character password. Copy it.
6. Back in Outlook, when it asks for your password again, paste that app password. Not your regular one.

Had a client last month—small law firm, three partners—whose entire email setup crashed because of this. App password fixed it in two minutes. No reinstalling Outlook, no deleting profiles.

Why this works

Google's 2FA means your normal password alone isn't enough. Outlook doesn't support the full Google sign-in flow (the one that sends you a text). So it falls back to older methods that Google blocks. An app password is a one-time key that bypasses that. It's still secure—Google limits what it can do.

If you don't have 2FA turned on, the fix is different. Google started blocking 'less secure apps' in 2022. That setting is gone now. So even without 2FA, Outlook's old IMAP setup won't work. You need to turn on IMAP in Gmail (Settings > See all settings > Forwarding and POP/IMAP > Enable IMAP) and then use that same app password trick.

Less common variations of this error

Outlook says 'We couldn't log on to the incoming mail server'

Same root cause—Google's blocking the password. Follow the same app password steps. If that doesn't work, check your IMAP server settings: imap.gmail.com on port 993 with SSL. SMTP is smtp.gmail.com on port 465 or 587 with TLS. I've seen Outlook autofill those wrong once or twice.

Outlook keeps asking for password

This one usually means the app password expired (it doesn't, but Outlook might have saved the wrong one) or your 2FA changed. Remove the account from Outlook completely—File > Account Settings > Account Settings > select it > Remove. Then add it again with a fresh app password. Don't just change the password in the existing account—Outlook holds onto old credentials.

'Something went wrong' during OAuth

Newer Outlook versions (Microsoft 365, Outlook 2021) try to use OAuth—the modern sign-in with that Google pop-up window. If that window shows 'Something went wrong,' it's a browser or cookie issue. Clear your browser cache for Google accounts, or try a different browser. I had one case where Edge was the culprit—Chrome worked fine.

Prevention—stop this from happening again

• Keep 2FA on—it's not the problem. App passwords work fine.
• Use the latest Outlook—older versions (2013, 2016) are more likely to fail. If you can, upgrade to Outlook 2019 or Microsoft 365. They handle OAuth better.
• Don't use POP—I see people try POP3 to avoid this. Bad idea. POP downloads email to one device and deletes it from the server. IMAP is better. App passwords work with both, but POP causes more problems long-term.
• Check Google's security page once a month—sometimes Google revokes app passwords for security reasons (like a suspicious login). You'll get an email. Act fast.

Quick tip: If you're on a shared computer (like at a school or library), don't save the app password in Outlook's password manager. Google might flag it. Type it fresh each time.

That's it. No need to call IT or reinstall Windows. App password, paste it, done. If you still get the error after following these steps, check if your Outlook needs an update—File > Office Account > Update Options > Update Now. I've seen an old Outlook version refuse Gmail entirely until updated.