If Claude.ai isn’t working as expected - such as replies failing, slow responses, login issues, or features being unavailable - this guide focuses on the most common Claude-specific problems and how to resolve them.

Common Claude Issues and How to Fix Them

Claude says “Something went wrong” or fails to respond:
This often happens during high server load or temporary backend issues. Refresh the page, wait a minute, and resend your prompt. Shortening the prompt can also help.
Responses are extremely slow or time out:
Claude may be under heavy usage. Try again after a few minutes, reduce prompt length, or start a new chat session.
Claude stops mid-response:
This can occur due to connection issues or internal rate limits. Refresh the page and ask Claude to continue, or rephrase the prompt.
Can’t log in or stuck in a login loop:
Usually caused by browser cookies, cached sessions, or blocked authentication scripts. Clear cookies for claude.ai or try another browser.
Uploads or attachments fail:
File uploads may fail if the file is too large, unsupported, or if the session is unstable. Try a smaller file or reload the page before uploading again.
Features missing (models, tools, or UI options):
Claude rolls out features gradually. Missing options may be account-specific or temporarily disabled during updates.

Quick Troubleshooting Checklist

Refresh the page or start a new chat
Log out and back in to reset your session
Clear browser cache and cookies for claude.ai
Disable browser extensions (especially ad blockers or privacy tools)
Turn off VPNs or corporate firewalls that may block requests
Try a different browser or device
Reduce prompt length or complexity
Wait a few minutes if Claude appears overloaded

What Often Causes Claude Issues

High traffic or peak usage times
Backend model updates or feature rollouts
Long or complex prompts hitting internal limits
Browser session or authentication problems
Network restrictions blocking API requests

When to Contact Claude Support

If problems persist and none of the steps above help, contact Claude support. Include:

The exact error message (if shown)
What you were trying to do (prompt type, file upload, model used)
Browser and device information
Approximate time the issue started

This page is intended as a first-step troubleshooting guide for Claude.ai. If the issue is widespread or persistent, it’s likely a service-side problem and will resolve once systems stabilize.