"Claude isn't working" can mean three genuinely different things — an unreachable network, an unsupported region, or a risk-flagged IP — and they call for different fixes. Checking each one separately is faster than guessing.
The three signals that actually matter
- Network reachability. Can your browser actually reach Anthropic's API endpoint right now? Corporate firewalls, DNS filtering, and ad blockers can all interfere with this independently of everything else.
- Regional availability. Is your apparent country on the published list of supported regions for claude.ai and the API? This is separate from whether your network can technically connect.
- IP risk environment. Does your current connection look like a VPN, proxy, Tor exit, or datacenter address? This doesn't determine access on its own, but it's a genuinely different signal from the other two and worth knowing.
How to check your own network
NetRiskScan's Claude Access Checker runs all three checks together: it looks up your IP's reputation and network-type signals the same way our IP Risk Check does, separately probes whether your browser can reach Anthropic's API endpoint, and compares your apparent region against published availability data.
- Open the checker and let it run — no configuration needed.
- Read the network reachability result first: if it failed, start there, since a regional or IP issue is moot if the connection can't complete at all.
- Check regional support next.
- Review the IP risk signals last — they're context, not usually the primary cause of an outright block.
Reading a mixed result
It's common to see one check pass and another fail — for example, your network reaches Anthropic fine, your region is supported, but your IP shows a VPN flag. That combination usually means access still works but may be less stable, not that it's blocked outright. A failed reachability check alongside a supported region more often points to a local network issue (firewall, DNS, browser extension) than to anything about your account or region.
What this tool is for — and isn't
This is a diagnostic and troubleshooting tool. It does not alter, bypass, or misrepresent your access to any service, and it will not tell you how to circumvent a region restriction or access control — that's outside what a legitimate diagnostic tool should do. If a check indicates your network genuinely isn't eligible, the appropriate next step is using a network or connection method that complies with the service's own terms of use.
FAQ
Why does it say my network is restricted when I can browse normally?
General web browsing and reaching one specific API endpoint aren't the same test. A corporate proxy, DNS filter, or an ad blocker can interfere with the specific reachability probe this tool runs while every other site loads fine.
My VPN is flagged but I'm not trying to hide anything — why?
VPN and proxy detection runs on network signals (IP ranges, ASN registration, hosting patterns), not intent. Business VPNs, corporate remote-access tools, and some mobile carrier NAT ranges can trigger the same signal as a consumer VPN.
How current is the regional availability data?
The result shows the date that data was last checked. Availability can change without notice, so treat a supported/unsupported read as informational and confirm against the service's own current terms if it matters for your use case.
Does this apply to other AI services too?
The same three checks — network reachability, regional availability, IP risk environment — are general-purpose network diagnostics, not specific to Claude. They're a reasonable starting point for troubleshooting access to ChatGPT, Gemini, or any other AI service with regional or network-based access behavior. What we can't responsibly do here is describe another provider's specific, undisclosed access policy — that would be speculation dressed up as fact. For anything provider-specific, the service's own official documentation is the source that actually matters; this page only covers what's observable about your own network.