Setup and context
Have you experienced Claude not responding? Common frustrations include silence, frozen progress bars, and long waits.
Good news: Most cases resolve with simple fixes.
Main Causes
1. Processing Timeout (Most Common)
Claude requires time for heavy work. 1-million-token analysis takes 2–5 minutes. Complex code generation takes 1–3 minutes.
2. Account or API Issues
- Expired Pro/Max subscription
- Invalid API key
- Session authentication failure
3. Prompt-Related Problems
- Extremely long prompts
- Infinite loop requests
- Overly complex queries
4. Browser or Device Issues
- Corrupted cache
- JavaScript disabled
- Insufficient memory
5. Anthropic Server Issues (Rare)
- Scheduled maintenance
- Temporary outages
Troubleshooting Steps
Step 1: Wait
Most cases resolve with patience. Text generation takes 10–30 seconds. Million-token analysis takes 2–5 minutes.
Step 2: Check Internet
Open another website to confirm connectivity.
Step 3: Clear Browser Cache
Delete cached data from Chrome, Safari, or Firefox.
Step 4: Try Incognito Mode
Test if browser extensions are interfering.
Step 5: Check Device Memory
Close other applications if memory usage exceeds 90%.
Step 6: Verify Subscription
Confirm Pro/Max subscription is active.
Step 7: Test Simple Prompt
"Hello. Please respond."
Step 8: Check Server Status
Visit Anthropic Status.
Common Scenarios
API Timeout: Increase timeout to 60+ seconds.
Slow Processing: Remove unnecessary content or split requests.
Peak Hour Delays: Avoid 19:00–23:00 JST. Use 6:00–9:00 AM instead.
Image Upload Hang: Check file size (under 5MB). Limit to 20 images.
Mobile App Freeze: Restart the app or reinstall.