I’ve helped readers fix the “Gmail sign-in loop” for years, and the answer is almost always simpler than they expect. In most cases, Gmail keeps asking you to sign in because the session cookie that proves you already logged in is being deleted, blocked, or rejected by Google itself. Sometimes it’s a browser setting. Sometimes it’s an extension. Sometimes it’s a security feature doing exactly what you told it to do.
In this guide, I’ll walk you through the exact reasons Gmail keeps logging you out, the fixes that actually work on desktop and mobile, and the warning signs that what you’re seeing is a phishing attempt rather than a real Google prompt. By the end, you’ll know which fix matches your situation and how to keep Gmail signed in for good.
Table of Contents
Why Does Gmail Keep Asking Me to Sign In Repeatedly?
Gmail repeatedly asking for your password is almost always caused by one of three things. First, your browser is clearing session cookies every time you close it. Second, a privacy or security extension is deleting Gmail’s cookies before the page loads. Third, Google’s own security system is ending the session because something about the login looks different than usual.
Less common causes include blocked third-party cookies, conflicting Google accounts, Google Workspace admin policies, and 2-step verification prompts going to a phone you no longer use. I cover each one in detail below, starting with the most common.
Browser Cookie Settings Are Clearing Your Session
If Gmail keeps signing you out after you close your browser, your browser is almost certainly set to clear cookies on exit. Cookies are small files Gmail uses to remember that you signed in. When those cookies disappear, Gmail has no proof you are who you say you are, so it asks again.
How to Allow Cookies in Chrome
Open Chrome, click the three-dot menu in the top-right, then go to Settings > Privacy and security > Cookies and other site data. Select “Allow all cookies” if you want Gmail to keep you signed in across browser restarts. If you prefer stricter privacy, choose “Block third-party cookies in Incognito” instead. The “Clear cookies and site data when you close all windows” option is the one that signs you out every time.
Firefox, Safari and Edge Cookie Settings
In Firefox, open Settings > Privacy and Security, then under “Enhanced Tracking Protection” choose Standard or Custom with the “Delete cookies and site data when Firefox is closed” box unchecked. In Safari, open Preferences > Privacy and make sure “Block all cookies” is off. In Edge, go to Settings > Cookies and site permissions > Cookies and site data and turn off “Clear cookies and site data when you close all windows”.
A Privacy Extension Is Blocking Your Gmail Cookies
Privacy extensions like uBlock Origin, Privacy Badger, and certain antivirus browser shields sometimes treat Gmail’s session cookies as trackers and remove them. The result is a Gmail session that lasts a few minutes before you’re logged out and asked to sign in again.
To check, open your browser’s extensions page and disable your privacy or ad blocker temporarily. If Gmail stops logging you out, you’ve found the culprit. Whitelist accounts.google.com and mail.google.com in your extension settings to keep the protection while letting Gmail stay signed in.
You Did Not Check Stay Signed In
That little “Stay signed in” checkbox on the Google login page matters more than most people realize. When it’s unchecked, Google treats the session as temporary and signs you out far sooner. When it’s checked, your session cookie is set with a longer lifespan.
If you’re using a shared or work computer, leaving it unchecked is the right call. If it’s your personal device, always check the box. You can find the option on the Gmail sign-in screen just below the password field. Older versions of Google used to put it under a “More options” link.
Google Security System Is Ending Your Session
Google actively watches for sign-in patterns that look suspicious. If you suddenly sign in from a new country, a new IP address, or through a VPN that changes locations, Google may end your session and ask you to verify again. This is by design, but it can feel like Gmail keeps asking you to sign in for no reason.
If you use a VPN, try connecting through a consistent server location rather than switching countries between sessions. You can also review your recent security activity at myaccount.google.com/security and mark any unfamiliar events as “Yes, that was me” or “No, secure your account” so Google stops flagging the same logins.
Third-Party Cookies Are Blocked by Your Browser
Some of Google’s authentication depends on third-party cookies. When you block all third-party cookies, Gmail can lose track of your session across tabs, subdomains, and embedded sign-in widgets. This often shows up as a sign-in loop on sites that use “Sign in with Google”.
The fix depends on your browser. In Chrome, allow third-party cookies for google.com specifically using the site settings. In Safari, the “Prevent cross-site tracking” setting can be turned off for Google domains. In Firefox, use the “Custom” Enhanced Tracking Protection and create an exception for Google.
Multiple Google Accounts Creating Sign-In Conflicts
If you have more than one Google account and you switch between them often, Gmail sometimes gets confused about which account you want to be signed in to. The browser ends up with overlapping cookies and signs you out of one account to load the other.
To clean this up, open Chrome and go to Settings > You and Google > Other profiles. Remove any duplicate or unused profiles. Then visit accounts.google.com/AccountChooser and sign out of every account. Sign back in with the one you use most and add the rest through Gmail’s “Add another account” feature inside the app instead of through separate browser profiles.
The Gmail App Keeps Asking You to Sign In on Mobile
Mobile sign-in loops have their own set of causes. The two biggest are battery optimization settings killing the Gmail app in the background and an outdated or corrupted app cache. Here’s how to fix each platform.
Android Fixes
Open your phone’s Settings > Apps > Gmail > Battery and select “Unrestricted”. Then go to Storage and clear the cache. Also check Settings > Accounts > Google and make sure “Sync” is turned on for Gmail. If the problem continues, update the Gmail app from the Play Store and, if needed, remove and re-add your Google account.
iPhone Fixes
On iOS, open Settings > Mail > Accounts and tap your Google account. Toggle Mail off, wait five seconds, then toggle it back on. If you use the Gmail app instead of Apple Mail, open Settings > Gmail and enable Background App Refresh. Also turn off Low Power Mode while you test, because it disables background sync.
Two-Factor Authentication Keeps Re-Prompting You
If Gmail keeps asking you to verify through your old phone number, your recovery information is out of date. This is one of the most common complaints I see in our inbox. It usually happens after someone upgrades phones, switches carriers, or travels abroad without their primary device.
Sign in to myaccount.google.com from a device you can access, then go to Security > 2-Step Verification and update your phone number. Add at least two recovery options, such as a backup phone number, a recovery email, and physical security keys. Users on Reddit’s r/GoogleSupport consistently report that adding an authenticator app like Google Authenticator or Authy stops the repeated prompts faster than relying on SMS.
Google Workspace Account Policies Ending Your Session
If you use Gmail through work or school (a Google Workspace account), your administrator controls session length. Many Workspace admins set sessions to expire every 24 hours, every week, or after periods of inactivity. This is policy-driven and not something you can change from your account settings.
Ask your IT administrator about your organization’s session policy. Some admins will extend session length for trusted users or allow trusted device exceptions. Others require re-authentication for security compliance. Knowing the policy will at least explain why Gmail keeps asking you to sign in at work.
How to Spot a Phishing Email That Looks Like Gmail
Before changing any settings, make sure the prompts you’re seeing are actually from Google. Real Gmail notifications will only link to accounts.google.com. Phishing emails often look identical to Gmail’s “unusual sign-in” alerts but link to lookalike domains like accounts-google.com or go0gle.com.
If you ever get a sign-in prompt you didn’t expect, don’t click the email link. Open a new browser tab and go directly to accounts.google.com to check security alerts. Real prompts will appear in your account’s Security activity page. Fake ones won’t. This one habit will protect you from most Gmail-related phishing attempts.
Quick Checklist to Stop Repeated Gmail Sign-Ins
When Gmail keeps asking you to sign in, work through this checklist in order. Most readers solve the problem within the first three steps.
- Check “Stay signed in” on the Google login screen
- Allow cookies for
google.comandaccounts.google.comin your browser - Disable or whitelist Gmail in your privacy extensions
- Allow third-party cookies for Google domains only
- Turn off battery optimization for the Gmail mobile app
- Update your recovery phone number and backup email
- Use an authenticator app instead of SMS for 2-step verification
- Sign out of all Google sessions and sign in fresh once
If none of those fixes work, check your Google Account’s recent security activity and contact Google Support. Persistent sign-in loops that resist every fix are rare and usually indicate an account flag that only Google can clear.
Frequently Asked Questions
Why is Gmail constantly asking me to sign in?
Gmail constantly asks you to sign in because your session cookie is being deleted, blocked, or invalidated. The most common cause is your browser clearing cookies when you close it, followed by a privacy extension removing Gmail’s cookies and Google ending the session due to a security flag.
How do I stop Google from asking me to sign in every time?
Allow cookies for google.com in your browser settings, check the Stay signed in box, whitelist Gmail in your privacy extensions, and update your recovery phone number. If you use a VPN, stick to one consistent server location. These four fixes solve the problem for most users.
Why does Gmail keep asking for verification on my old phone?
Your recovery information is outdated. Go to myaccount.google.com, open Security u0026gt; 2-Step Verification, and update your phone number. Add a backup phone, a recovery email, and an authenticator app so Google has more than one way to verify you.
How do I know if a Gmail sign-in email is real or phishing?
Real Gmail security emails will only link to accounts.google.com. If the email links to a different domain, even one that looks similar, it is phishing. Open accounts.google.com directly in your browser to check your security activity instead of clicking email links.
Why is Gmail asking me to sign in again on my iPhone?
On iPhone, Gmail sign-in loops are usually caused by Low Power Mode disabling background sync, an outdated Gmail app, or a corrupted account token. Toggle Mail off and on in Settings u0026gt; Mail u0026gt; Accounts, update the Gmail app, and make sure Background App Refresh is enabled for Gmail.
Can Google Workspace force Gmail to sign me out every day?
Yes. Workspace administrators can set session length policies that end your Gmail session after a specific time period or after inactivity. If you use Gmail through work or school, ask your IT admin about your organization’s session policy.
The Bottom Line
If Gmail keeps asking you to sign in, the fix usually takes less than five minutes. Start by allowing cookies for Google in your browser and checking the Stay signed in box. Then disable any privacy extensions that might be deleting Gmail’s session. If those two fixes don’t work, update your recovery phone number and add an authenticator app. For most people reading this guide, the Gmail sign-in loop will be gone before you finish the checklist.