Our Systems Have Detected Unusual Traffic: Google Warning Fix

Google’s “Our systems have detected unusual traffic from your computer network” warning means Google Search is seeing automated-looking requests from your IP address, browser, device, or shared network. It is usually an IP reputation or automation challenge, not proof that your PC is infected. But if the message keeps coming back with no VPN, appears only in one browser profile, or shows up with redirects, pop-ups, unknown extensions, or strange network activity, treat malware, proxyware, or a compromised router as real possibilities.

Start with the URL. The real warning normally appears on google.com/sorry/ and asks you to complete a reCAPTCHA, enable JavaScript, use a supported browser, or wait before searching again. Do not run commands, paste PowerShell text, install a “verification” tool, or download a browser update from a CAPTCHA page. Those are fake CAPTCHA and ClickFix-style lures, not normal Google verification.

What the Google Unusual Traffic Warning Means

The warning is a traffic-reputation challenge. Google may show it when a network appears to be sending automated search requests, scraping traffic, repeated queries, or requests from a VPN/proxy endpoint used by many people. Google’s own guidance says VPN networks can trigger this message and recommends solving the reCAPTCHA first, then checking for malware if the message continues.

For a home user, the cause is often harmless: a VPN exit node, a public Wi-Fi network, a shared apartment or campus IP, a privacy tool, a browser automation extension, or an ISP address that recently had abuse traffic. Treat malware as one possible cause, not the first conclusion.

Real Google Warning vs Fake CAPTCHA Malware

A real Google unusual-traffic page only needs proof that you are human. A malicious fake CAPTCHA page tries to make you execute something.

If you already followed a fake CAPTCHA instruction, use Gridinsoft’s fake CAPTCHA malware cleanup guide instead of treating it as a normal Google Search error.

What to Check First

1. Verify the address. Make sure the page belongs to google.com. Close the tab if the domain is misspelled, uses an unrelated host, or asks you to install anything.
2. Complete the CAPTCHA once on the real page. If it clears and does not return, no malware cleanup may be needed.
3. Turn off VPN, proxy, Tor, or private relay tools temporarily. Test Google Search again from a direct connection. If the warning stops, the shared exit IP was probably the trigger.
4. Try another browser profile or private window with extensions disabled. Search-helper extensions, scraping tools, adware extensions, and automation add-ons can create traffic patterns that look robotic.
5. Test another network. Use a mobile hotspot briefly. If the warning disappears, the issue is tied to the router, ISP address, VPN endpoint, or another device on the original network.
6. Restart the router and check DNS/proxy settings. Look for unknown DNS servers, forced proxy settings, or a router admin password you did not set.
7. Scan the Windows device if the warning keeps returning. This matters when you also see redirects, pop-ups, unknown extensions, high network usage, or blocked outbound-traffic alerts.
8. If there is no CAPTCHA, fix the browser path first. Enable JavaScript for Google, disable privacy/script-blocking extensions for one test, try a supported browser, and check whether a DNS filter, firewall, or corporate proxy is breaking reCAPTCHA.

If It Keeps Coming Back Even Without a VPN

When the warning repeats after you turn off VPN, proxy, Tor, private relay, and search automation tools, split the problem into three lanes:

• One browser or profile: suspect extensions, cached site data, a search helper, automation scripts, or a hijacked browser profile.
• One device across browsers: check Windows proxy settings, DNS, startup items, scheduled tasks, recently installed apps, and malware or proxyware.
• Every device on the same network: check the router, another infected device, a shared ISP address, CGNAT/mobile carrier traffic, or a public IP that recently had abuse traffic.

This is also why the same warning can appear on iPhone, Android, Safari, Chrome, Firefox, or Incognito mode. Google is often reacting to the IP/network and traffic pattern, not just the browser window in front of you.

When Malware Is a Real Possibility

Malware is more likely when the warning appears together with other symptoms: browser tabs opening by themselves, ads injected into search pages, unknown proxy settings, recurring extension reinstalls, high network activity while idle, or security alerts about outbound connections. A botnet client, proxy malware, adware extension, or remote-access trojan can generate traffic from your connection and damage the reputation of your IP.

For browser-only symptoms, compare your situation with Browser Opens Multiple Tabs by Itself?. For broader remote-control concerns, see Remote Access Trojan (RAT): Meaning, Signs, and Removal.

Safe Cleanup Checklist

1. Remove recently installed browser extensions, especially search helpers, shopping tools, coupon extensions, and unknown “security” add-ons.
2. Check Windows proxy settings under Settings → Network & Internet → Proxy. Disable unknown manual proxies.
3. Check DNS settings on the PC and router. Use your ISP, router default, or a known public DNS provider only if you intentionally configured it.
4. Review Startup apps and Task Scheduler for unknown browser launchers, scripts, or executables from AppData, Temp, or Downloads.
5. Run a full system scan with your built-in security tool, then use Gridinsoft Anti-Malware as a second-opinion scan if the warning persists or other symptoms are present.
6. Change important account passwords from a clean device if you ran a command from a fake CAPTCHA page or installed a suspicious “verification” file.

If Every Device on the Network Gets the Warning

When phones, laptops, and other browsers all get the same Google warning, do not focus only on one PC. The suspicious traffic may come from another device, a shared VPN/proxy endpoint, a router setting, or an ISP address that was recently used by someone else.

Disconnect VPN clients, pause download/search automation tools, update the router firmware, change the router admin password, and check connected devices. If the warning stops on a mobile hotspot but returns on home Wi-Fi, the problem is probably network-wide rather than a single browser cookie. If every local check is clean, ask the ISP whether your public IP is shared through CGNAT or has recently changed; switching IPs or waiting for reputation to cool down can be more realistic than reinstalling a clean PC.

How to Avoid Repeated Google Traffic Challenges

• Avoid browser extensions that automate Google searches or scrape search results.
• Do not run SEO, scraping, rank-checking, or automation tools from your personal browser profile.
• Use reputable VPN endpoints and switch servers if one exit IP is repeatedly challenged.
• Keep browsers and extensions updated, and remove extensions you no longer use.
• Treat “verify you are human” pages that request commands or downloads as hostile.

FAQ

References

1. Google Search Help. “Resolve Google Search’s ‘Unusual traffic from your computer network’ message.” Google, accessed June 8, 2026. https://support.google.com/websearch/answer/86640
2. Microsoft Security. “Think before you ClickFix: Analyzing the ClickFix social engineering technique.” Microsoft Security Blog, August 21, 2025, accessed June 8, 2026. https://www.microsoft.com/en-us/security/blog/2025/08/21/think-before-you-clickfix-analyzing-the-clickfix-social-engineering-technique/