Roblox Browser Login Issues: Captcha and Clock Fixes
Verified November 7, 2026 · Status: live troubleshooting
Roblox browser login issues — captcha not loading, login/logout failures, “session expired” loops — usually trace to Arkose Labs captcha domains being blocked, an inaccurate system clock breaking SSL, or stuck browser cookies — fixed in this order. Verified on 7 November 2026.
Source: Roblox Support — Issues Logging In or Out in a Browser.
Symptom → cause → first action
| Symptom | Likely cause | First action |
|---|---|---|
| Captcha never loads (blank box) | Ad-blocker or AV blocking arkoselabs.com / funcaptcha.com | Allow both domains in extension + AV |
| Captcha loads but always fails | Browser extension manipulating the challenge | Try incognito mode (extensions off) |
| “Session expired” immediately after login | System clock off by > a few minutes | Sync OS clock (see platform table) |
| Login loop (sends you back to login) | Stuck roblox.com cookies | Clear roblox.com cookies for that browser |
| Password rejected (correct password) | Account under moderation or password changed elsewhere | Reset via Forgot your password |
| Can’t log OUT | Cached session cookie | Clear cookies and hard-reload |
Fix 1 — allow Arkose Labs captcha domains
Roblox’s captcha is operated by Arkose Labs. Two domains must be reachable:
.arkoselabs.com.funcaptcha.com
Allow both in these places:
- uBlock Origin / AdBlock — Dashboard → My filters → add
@@||arkoselabs.com^$documentand@@||funcaptcha.com^$document, then Apply changes. - Privacy Badger — Site settings → add both domains to “Allowed” list.
- Antivirus web shield (Norton / McAfee / Kaspersky / Avast) — Web protection → Exceptions → add both.
- Pi-hole / NextDNS / home-router DNS filtering — whitelist both.
Fix 2 — system clock sync per OS
HTTPS certificates fail validation if the OS clock is off by more than a few minutes. Per-platform sync:
| Platform | Steps |
|---|---|
| Windows 10 / 11 | Settings → Time & language → Date & time → toggle “Set time automatically” off then on → Sync now. Verify Time zone matches your real location. |
| macOS | System Settings → General → Date & Time → enable “Set date and time automatically” (server: time.apple.com). |
| iOS / iPadOS | Settings → General → Date & Time → Set Automatically ON. |
| Android | Settings → System → Date & time → Use network-provided time ON. |
| ChromeOS | Settings → Advanced → Date and time → 24-hour clock / zone correct; auto-sync via Google servers is default. |
Fix 3 — clear roblox.com cookies only
You don’t need a full browser wipe. Clear just roblox.com:
- Chrome / Edge: Settings → Privacy and security → Cookies → See all site data → search “roblox” → Remove each entry.
- Firefox: Settings → Privacy & Security → Cookies and Site Data → Manage Data → search “roblox” → Remove Selected.
- Safari: Settings → Privacy → Manage Website Data → search “roblox” → Remove.
Fix 4 — try an incognito/private window
Extensions are disabled by default in private mode, so if Roblox works there the blocker is an extension. Common offenders: ad blockers, privacy extensions (Ghostery, DuckDuckGo Privacy), VPN extensions.
If none of the above helped
- Try the Roblox desktop app — bypasses browser captcha entirely.
- Try a second browser (if Chrome failed, test Firefox).
- Switch networks (mobile hotspot) — rules out your ISP / router DNS filtering.
- Reset your password at roblox.com/account/signupredir → Forgot your password.
- If password reset email doesn’t arrive, see account recovery.
- If you suspect your account was compromised, open hacked account recovery.
- Still stuck after all of the above → submit a ticket at roblox.com/support with username, browser + version, exact error text, and the list of fixes you’ve already tried.
FAQ
Why can’t I pass Roblox captcha?
Roblox’s fix: add .arkoselabs.com and .funcaptcha.com to your allow list. Antivirus and browser extensions blocking these two domains are the most common cause of captcha failures.
How do I sync my system clock?
Windows: Settings → Time & language → Sync now. macOS: System Settings → Date & Time → Set automatically. iOS/Android: Date & time → Automatic. See the platform table above for exact paths.
Do I need to clear my whole browser cache?
No — just roblox.com cookies. Full cache wipe is overkill and loses sessions for other sites. Use the site-specific cookie clear flow in Chrome/Edge/Firefox/Safari settings.
What if captcha works in incognito but not normal browsing?
A browser extension is blocking it. Try disabling extensions one-by-one — ad blockers, privacy extensions (Ghostery, DuckDuckGo Privacy), and VPN extensions are the common culprits.
Can I avoid captcha completely?
The Roblox desktop app has its own authentication flow without browser captcha. If browser captcha keeps failing, install the Roblox app from roblox.com and log in there instead.
When should I reset my password?
When captcha works but your correct password is rejected, or when you suspect compromise. Reset at roblox.com → Forgot your password. If the reset email never arrives, see account recovery.
What info does Roblox Support need?
Username, browser name + version, the exact error text or screenshot, the OS you’re on, which of the fixes above you’ve already tried. Clean details speed up ticket resolution.
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