Cloudflare AI incident
Cloudflare Gateway DNS-over-TLS Connectivity Issues over IPv4
Started
November 2, 2026 at 10:12 PM UTC
Duration
2h 21m
Resolved
November 3, 2026 at 12:34 AM UTC
Updates timeline
- Investigating
Cloudflare is investigating an issue affecting Cloudflare Gateway DNS-over-TLS (DoT) connections over IPv4. Affected customers may experience connection timeouts and failed DNS resolution. This issue is limited to DoT over IPv4. DoT over IPv6, DNS-over-HTTPS (DoH), and standard DNS over UDP/TCP are not affected. We are working to identify the cause and restore connectivity. Further updates will be provided as more information becomes available.
- Monitoring
Our team has been able to identify and apply an effective fix for this issue. We are currently monitoring the results.
- Resolved
This incident has been resolved.
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