If Claude suddenly stops sending messages, can’t save projects, or keeps spinning on file uploads, most of these issues can be identified and fixed in a few steps. This article organizes a Claude troubleshooting workflow you can follow directly, in the order of “check service status first → then check browser and network → finally handle account and quota.”
Start with three quick checks: is it a service issue or a local issue?
When troubleshooting Claude, first open Anthropic’s status page to see whether there is any service disruption; if the status page shows an issue, prioritize waiting for recovery rather than repeatedly retrying. If the status is normal, switch to an incognito window or try logging in with another browser to quickly determine whether it’s a cache issue or an extension conflict. Finally, switch to a different network (such as a mobile hotspot) to verify whether the network is blocking requests—this step can save a lot of time.
Message send failure / endless loading: from refreshing to “minimal input”
If you encounter “send failed / stuck with no result,” Claude troubleshooting recommends refreshing the page and resending once first, to avoid queue buildup caused by repeated clicks. Temporarily shorten what you’re sending (test with one or two sentences first) to confirm it isn’t extremely long content or pasting a large amount of formatting that’s causing rendering lag. If you have ad blockers, script managers, or privacy-related extensions installed, pause them all and try again—many “mysterious failures” come from here.
