#  Cloudflare Gateway DNS-over-TLS Connectivity Issues over IPv4

- Provider: [Cloudflare Zero Trust](https://down.guide/cloudflare-zero-trust)
- Level: confirmed
- Impact: Degraded
- lasted 2h 22m
- started 2026-11-02 22:12 UTC
- Gateway
- id: DWN-a618af63b3
- Official page: https://www.cloudflarestatus.com/incidents/3bv9locsg7ln

## Updates from Cloudflare Zero Trust
### 2026-11-02 22:12 UTC: 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.

### 2026-11-03 00:23 UTC: monitoring
Our team has been able to identify and apply an effective fix for this issue. We are currently monitoring the results.

### 2026-11-03 00:34 UTC: resolved
This incident has been resolved.

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