If Claude suddenly won’t send, the page keeps spinning, or your chats disappear, it’s usually not that “the model is broken,” but that your browser cache, network, or login state is holding you back. Follow this Claude troubleshooting guide in a “fast first, slow later” order, and you can generally pinpoint common issues and restore normal use.
Do these three steps first: quickly narrow down the scope of Claude troubleshooting
When troubleshooting Claude, clear out environmental variables first: refresh the page once, then log in again in an incognito window and try sending a short message. Next, temporarily disable ad blockers, script managers, and privacy-protection extensions—they’re the most likely to block necessary scripts and cookies.
If it’s still abnormal, include the network in your Claude troubleshooting: switch to a mobile hotspot or try a different Wi‑Fi, and temporarily disable any proxy/acceleration tools. These three steps alone cover most “intermittent failures.”
Send failures, frozen input box: prioritize Claude troubleshooting by content and conversation
The most common issue in Claude troubleshooting is “click Send and nothing happens / it says failed.” First, shorten the message—remove overly long code blocks, bulk tables, and too many special symbols—then resend; the more complex the content, the more likely it is to trigger browser lag or have the request interrupted.
If it repeatedly fails only within a specific conversation, start a new chat to test; this helps determine whether it’s a “conversation state” issue or a global issue. For attachment-related Claude troubleshooting, it’s recommended to remove the attachment first to verify you can send, then upload it again to avoid hidden errors caused by interrupted uploads.
