If you encounter Claude’s page endlessly loading, messages failing to send, or generation stopping midway, it’s usually not because “the model is broken,” but because limits are being triggered by your network, browser cache, or conversation length. Follow the Claude troubleshooting steps below from easiest to hardest; they can generally pinpoint the cause. After completing each step, go back to Claude and try again to avoid changing too many things at once and making it hard to tell what helped.
First, confirm whether it’s a server-side fluctuation: don’t rush to reinstall your browser
When Claude suddenly freezes on a large scale, first switch to another tab and refresh once, and see whether all conversations are unusable. Then use a mobile hotspot or another network to open Claude and compare whether it fails the same way—this quickly distinguishes “a network issue on your side” from a “widespread outage.” If only a specific conversation is abnormal while new chats work fine, prioritize troubleshooting in the “context and content” direction.
Message send failures and endless loading: prioritize network and browser interference
The most common causes of “send failed / endless spinner” in Claude are an unstable network, conflicting proxy rules, or browser extensions blocking requests. First disable ad blockers, script managers, and privacy/anti-tracking extensions, then log into Claude in an incognito window to test. If it still doesn’t work, clear the site’s cookies and cache (only for Claude-related data), then log in again—many seemingly “random” Claude issues can be resolved at this step.
Generation stuck or output cut off: check rate limits and conversation length
Submitting many prompts rapidly in succession or repeatedly withdrawing and resending may trigger temporary rate limiting, which can show up as Claude getting stuck or taking a long time to output text. Pause for a minute or two before sending again, and reduce asking questions across multiple windows at the same time. Another common cause is an overly long context: split your request into two or three parts, ask Claude to produce an outline first, then generate section by section—this is often more stable than stuffing everything into a single thread. If a particular passage always cuts off at a fixed point, copying that portion out, shortening it, and retrying is a very practical troubleshooting technique.
Blank page or unclickable buttons: verify with a “minimum viable environment”
If Claude shows a white screen or the input box is unusable, first switch browser engines (e.g., Chrome ↔ Edge) or use incognito mode to confirm whether the issue is caused by local configuration. Enable automatic browser language and time zone settings, and then retry after disabling aggressive privacy options such as “block third-party cookies.” If your corporate network has a security gateway, it may rewrite requests and cause Claude to malfunction; switching to a home network or a mobile hotspot can quickly verify this.
Account restrictions or repeated logins: don’t blindly retry many times
If Claude keeps redirecting to the login page—returning there even after verification—first confirm your account email can receive messages normally, and avoid triggering risk controls by entering the wrong password multiple times in a short period. If the issue persists after changing networks, submit a report via the help entry point, including the approximate time, browser version, and reproduction steps; this can significantly improve investigation efficiency. When troubleshooting Claude, the biggest taboo is “frequent refreshing + repeated logins,” which can easily amplify a temporary issue into a longer restriction.
