Google says “unusual traffic from your computer network”: why, and how to stop it

What does “unusual traffic from your computer network” mean?

It means Google believes searches from your network are being sent by software rather than a person. The full message reads “Our systems have detected unusual traffic from your computer network”, and Google's help page says it appears when “a network you use, including VPN networks, seems to be sending automated traffic to Google Search.”

Google counts these as automated: searches sent by robots, computer programs, automated services and search scrapers, and software that checks where a website ranks on Google. You don't have to be running any of them yourself. Google sees an IP address, and every device or person behind that address shares its standing.

The page normally shows a reCAPTCHA. Solve it and you can search again. If no reCAPTCHA appears, Google says to check that your browser is supported and JavaScript is on.

Why does Google think I'm a robot?

Often it's someone else on your IP address. Google's help page lists four places the traffic can come from, and three of them have nothing to do with your own device:

1. Malware on your computer or another device on the network, which can send searches in the background without anything showing in your browser.
2. Other people on the same network. At a school, office, library or hotel, hundreds of people share one public address, and one person running a scraper is enough.
3. Other users of the same VPN. Google says this “can also happen with IPv6 tunnel services”, and that some VPNs and tunnels get all their traffic blocked because Google can't separate abusive from normal traffic on them.
4. Other customers of your internet provider. Mobile carriers, and a fair number of home broadband providers, put many customers behind one address with carrier-grade NAT, so you share a reputation with strangers.

Google's definition of automated traffic also covers software you may have installed on purpose, such as rank trackers and SEO tools that send queries for you. Some privacy extensions do it too: one network admin on Security Stack Exchange traced repeated blocks in an office of more than 100 users to a single Firefox add-on, TrackMeNot, which was sending requests to Google every six seconds.

Is it my device or my network?

Change one thing at a time and see whether the message follows you. Two tests are enough to tell the difference.

If it is the network, look at who your public address belongs to. A lookup of your IP shows its owner and flags VPN, proxy, Tor, privacy relay and datacenter addresses. Google's help page names VPNs and tunnels as a known source, and a VPN or proxy result while you aren't using one is worth chasing down.

How do I find which device on my network is causing it?

Take devices off the network one at a time and see when the message stops. At home, switch off Wi-Fi on each phone, laptop, console and TV box in turn, or use the router's connected-devices page to pause them one by one. Leave each one off long enough to run a few searches before you judge.

Start with the likeliest culprits: unbranded streaming boxes, computers with SEO or automation tools, and anything running an app that pays you for sharing your connection. The boxes and bandwidth apps are on that list because, as the FBI pointed out in March 2026, they can relay other people's traffic through your connection, and Google would see that traffic as yours.

On a bigger network the same method scales up. The admin in the Security Stack Exchange thread gave each internal subnet its own public address, then moved whoever reported the error into a separate group with a fresh address, adding and removing people until one user was left. With more than 100 users it took two to three days, and it found the add-on.

How do I stop the Google captcha on every search?

Remove whatever is sending automated traffic, or stop sharing an address with whoever is. Roughly in order of effort:

1. Solve the reCAPTCHA and carry on. If the message only turns up once in a while, nothing more is needed.
2. Switch the VPN off, or change server. If Google works with the VPN off, your VPN exit is shared with automated traffic, and a different server or the provider's dedicated-IP option gets you away from it.
3. Disable extensions, starting with SEO tools, rank checkers, privacy add-ons that generate decoy searches, and anything that prefetches or “enhances” search results. Re-enable them one by one.
4. Clear Google's cookies for that browser profile. It sometimes helps, though Google doesn't say it does.
5. Scan every device on the network for malware, not only the one showing the message. Google's help page links to its own malware removal guide.
6. If your ISP assigns addresses dynamically, restarting the router may give you a new public one.
7. On a school or work network, tell the IT team, because only they can find the source. On a home connection where nothing above helps, contact your ISP, since Google lists other customers of your provider as a possible cause.

Why does Google show unusual traffic when I use a VPN?

Because a VPN server puts you behind one address with many other users, and Google judges the address. If even a small share of those users run scrapers, the whole exit looks automated. Google goes further for some VPNs and IPv6 tunnel services: it says it may block all their traffic, because it can't tell abusive and normal users apart on them.

Your realistic options are a different server, a dedicated IP from the same provider, or excluding your browser from the tunnel if the VPN app supports split tunnelling (a few apps can exclude single sites such as google.com). None of these hides anything from Google; they just stop you sharing an address with bots.

Does “unusual traffic” mean I have a virus?

Not necessarily. Google lists malware as one cause among several, and on a VPN, a mobile network or a shared office connection the traffic is far more likely to come from other people. If the message follows one computer onto every network you try, though, treat that computer as suspect and scan it properly.

I run a network: how do I stop Google flagging our IP?

Google's instruction to network administrators, ISPs and VPN operators is to find the sources of automated traffic to Google and block them; once the automated searches stop, users can search normally again. It also warns buyers of IP space to check addresses before buying from an IP broker, and to test that the network can reach major websites without existing blocks.

For a NAT pool or a newly acquired block, part of that check can be scripted. The bulk IP checker takes up to 100 addresses at a time and shows which ones already read as VPN, proxy, Tor or datacenter space, and POST https://iplogs.com/v1/bulk-check does the same from a script (the API docs have the format). It won't tell you whether Google itself is blocking an address, so still test the searches from the network.