Common errors and troubleshooting paths
Resolve authentication, rate-limit, billing, and connection issues quickly.
Read time 10 分钟·Updated 2026-08-25
401 Unauthorized
Check your session, Access Key, and whether the request uses the correct API or Tunnel host.
402 BILLING_LIMIT
The account reached its overage budget. Increase the budget in the console or wait for the next period.
429 Rate Limited
Anonymous Quick Tunnels have creation limits. Wait for the window to reset or use a Persistent Tunnel after signing in.
503 Service Unavailable
Check Auth0 configuration, Worker secrets, and D1 migrations. Keep the same Idempotency-Key when retrying a create request.
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