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10 Tech How-To

Fix Unusual Traffic From Your Computer Network

Guide 10-28272 · Updated · Step by step

If Google is showing you the “Our systems have detected unusual traffic from your computer network” page, the fix is usually to clear your browser cookies and cache, disable a VPN or proxy, or scan for malware. This message appears when Google’s automated systems see a high volume of automated requests from your IP address, and it is a temporary security measure rather than a permanent block.

Why Google Shows This Message

Google uses automated systems to detect and block traffic that looks like it comes from bots, scrapers, or automated software. When your IP address makes too many requests in a short period, or when the request pattern looks non-human, Google may show the CAPTCHA or the “unusual traffic” page. This is not a ban on your account – it is a rate-limit triggered by the network address you are using. Common triggers include:

  • Using a VPN or proxy service that many other people share, so the combined traffic looks suspicious.
  • Running a browser extension that makes automated background requests (like a price tracker or a tab reloader).
  • Being on a corporate or school network where many users share one public IP address.
  • Having malware on your device that sends requests in the background.
  • Refreshing a page rapidly or using a download manager that opens many connections at once.

Quick Fixes to Try First

Start with the simplest solutions, as they resolve most cases. Work through these in order:

  1. Complete the CAPTCHA. If Google shows a checkbox or image puzzle, solve it. This often immediately restores access.
  2. Wait 15–60 minutes. The block is usually temporary. Leaving the browser closed for an hour often clears it.
  3. Clear cookies and cache. In Chrome, go to Settings → Privacy and Security → Clear browsing data. Select “All time” and check both cookies and cached images. Then restart the browser.
  4. Turn off your VPN or proxy. Disconnect from the VPN and try again with your normal internet connection.
  5. Restart your router. This often assigns you a new public IP address, which may be outside the flagged range.

How to Identify the Source of the Traffic

If the simple fixes do not work, you need to find what is generating the requests. On Windows, open Task Manager (Ctrl+Shift+Esc) and look at the network usage column to see which processes are using data. On macOS, use Activity Monitor and sort by “Sent Bytes.” Look for processes you do not recognize, especially ones with high network activity while you are not actively browsing. Also check your browser’s extensions: in Chrome, go to chrome://extensions and disable all extensions, then re-enable them one by one to find the culprit. A common offender is a “tab suspender” or a “shopping assistant” extension that polls servers frequently.

If you are on a shared network (office, school, apartment building), the traffic may not come from your device at all. Someone else on the same network could be running a bot. In that case, the block will persist until that activity stops. You can check whether your IP address is shared by visiting a service like whatismyipaddress.com and seeing if the location matches your physical one – if it shows a data center location, you are likely on a VPN or a shared hosting IP.

When to Suspect Malware

If the message appears repeatedly even after clearing cookies and disabling extensions, malware is a real possibility. Some malicious programs use your computer to send requests to Google (for example, to inflate ad clicks or to scrape search results). Run a full scan with Windows Defender (Windows) or the built-in malware scanner on macOS. Also check your browser’s settings for a rogue search engine or a proxy that was set without your knowledge. In Chrome, go to Settings → Search Engine → Manage search engines and remove anything you did not add. In Windows, check Internet Options → Connections → LAN settings and make sure “Use a proxy server” is unchecked unless you intentionally set one.

How to Prevent This From Happening Again

Once you have cleared the current block, you can reduce the chance of it recurring. The most effective measures are:

  • Avoid shared VPNs for normal browsing. If you need a VPN, choose one with dedicated IP addresses, or use it only for specific tasks.
  • Limit browser extensions. Keep only the ones you actually use, and review them periodically for background permissions.
  • Do not use automated search tools. Tools that fetch Google results in bulk (for SEO research or data scraping) will trigger this message quickly.
  • Keep your browser and OS updated. Updates often patch vulnerabilities that malware exploits.
  • Use Google’s own tools. If you are doing research, use the official APIs instead of scraping the search results page.

What Does Not Work

Some advice you may see online is ineffective or risky. For example, repeatedly refreshing the page does not help – it makes the problem worse. Clearing only the browser history (not cookies) will not help, because the flag is tied to your IP address, not your history. Also, using “incognito mode” does not bypass the block, since the block is at the network level, not the browser profile level. Finally, do not try to spoof your user agent or modify Google’s cookies manually – this can lead to a longer block and is not a reliable fix.

Frequently Asked Questions

Is this message a permanent ban? No. It is a temporary rate-limit. It typically resolves within a few hours to a day. If it persists for more than 48 hours, the cause is likely ongoing automated traffic from your network, not a one-time spike.

Does it affect my Google account? No. The message is tied to the IP address, not to your logged-in account. You can still use Google services on a different network (like your phone’s mobile data) without issue.

Will clearing cookies log me out of everything? Yes, clearing all cookies will sign you out of most websites. To avoid that, you can clear only the cookies for google.com: in Chrome, click the padlock icon in the address bar, then “Site settings,” then “Clear data.”

My whole office is blocked. What should I do? Contact your IT administrator. They can check the network’s outbound traffic for automated requests and may need to whitelist the office IP range with Google, though that is not always possible. In the meantime, use mobile data or a different network for urgent searches.

Does using a different browser help? Sometimes, but only if the issue is tied to a specific browser’s extensions or cached data. If the block is at the IP level, switching browsers will not help. Try Firefox or Edge to test, but expect the same result if the IP is flagged.

Can I use Google while the block is active? Yes, with limitations. You can still use Google Maps, Gmail, and other services that do not rely on the search index. The block specifically affects google.com search and sometimes YouTube. You can also use a different search engine (like Bing or DuckDuckGo) in the meantime.

Related

General steps for current mainstream versions; menus can differ by device and version. See the disclaimer or report an error.

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