1. Identify the entry and actual response
Confirm whether the failure is on the DeepSeek website, mobile app, or an API client. A third-party client may use its own relay; check the actual request destination.
A blank page, a timeout, and an API error are different observations. Keep the message and failure stage, removing API keys, session tokens, and private conversation content from shared logs.
| Code or symptom | Meaning | Next action |
|---|---|---|
| Blank or loading web page | The cause is not established | Inspect failed requests and official status |
| 402 | Insufficient API balance | Check official billing and balance |
| 429 | API rate limit reached | Reduce request frequency or concurrency |
| 503 | API server overloaded | Retry later and monitor official status |
2. Match official status to the component and time
Read the components, incident details, and update time on DeepSeek Status. An API incident does not establish the state of every web feature, and an old incident is not a current failure.
This site displays synchronized official status separately from a browser public-resource probe. A loaded resource does not prove chat generation works; Operational does not rule out an unreported local or request-specific issue.
- Compare the failure time with the incident window.
- Follow incident guidance and avoid repeated rapid retries.
- Do not infer capacity expansion or traffic shaping from a status color.
3. Isolate browser behavior
Keep the account and network fixed while testing the same entry in a fresh browser profile or private window. Private browsing changes session and storage conditions; it does not remove every extension or system setting.
If only one browser fails, inspect blocked scripts, site storage, and the actual failed request. Test a fresh session before deciding to remove that site’s data.
Record the stage
Separate loading, sign-in, sending a message, and interrupted generation.
Change one variable
Temporarily pause a relevant extension, retest, and restore it. Do not change DNS, routing, and browser settings together.
4. Compare network paths when evidence points there
Use the same device and browser on another known working network. Record changes in exits, address families, and failed requests. Recovery makes the path worth investigating; it does not prove an IP ban or a healthy account.
If using a proxy, inspect which rule the failed hostname actually matched. Compare one permitted path temporarily, then restore the configuration. Direct routing, disabling TUN, or changing system DNS is not a universal fix.
- Compare IPv4 and IPv6 separately.
- A different DNS exit alone does not prove DNS tampering.
- Do not promise performance from a fixed latency, region, or residential IP label.
5. Handle API retries and support evidence
Use the actual HTTP code and response body: check balance for 402, reduce request pressure for 429, and monitor overload recovery for 503. These errors require different actions.
If the issue persists, provide the service operator with the entry, time, request identifier, code, and controlled comparisons. Network results cannot determine account permissions, billing, or model access.
Keep a redacted record
Retain error codes, request IDs, and timestamps; remove keys and private content.
Contact the relevant operator
Use official documentation for the official API; verify the provider first for third-party clients.
Sources and evidence limits
Sources below support the stated technical or policy boundary. Diagnostic comparisons in this guide remain observations, not account verdicts.
- DeepSeek StatusDeepSeek · Official guidance
- DeepSeek API Error CodesDeepSeek · Official guidance