Claude Troubleshooting: Fix “Page Not Loading,” Chat History Not Saving, and Network Restrictions

If Claude won’t open, messages fail to send, or conversations don’t save, it’s usually not that Claude “suddenly broke”—it’s often caused by your network, browser cache, or account permissions triggering a Claude error. Below is a Claude troubleshooting checklist based on the most common scenarios. Follow the steps in order to narrow it down, and you can usually locate the issue within about 10 minutes.

Start with two quick checks: is it a server-side issue or something local?

Before you begin Claude error troubleshooting, open status.anthropic.com to see whether there’s a service disruption. If the status page shows an incident, waiting for recovery is often more effective than repeatedly refreshing. Next, try the same network in a different browser or an incognito/private window. Incognito mode bypasses extensions, old cache, and old cookies, which helps quickly determine whether the Claude error is caused by your browser environment.

Page won’t load or keeps spinning: common Claude errors tied to browser and network

If the page is blank or stuck loading, first clear the site’s cache and cookies, then sign in again—this is one of the most common and easiest Claude errors to fix. Then temporarily disable ad blockers, script managers, and privacy/anti-tracking extensions; many “after login it jumps back to the homepage” Claude errors come from extension blocking. If your company or campus network uses a proxy or content filtering, switch to a mobile hotspot for a quick test—this can confirm whether network restrictions are the likely direction for your Claude error troubleshooting.

Message failed to send or reply gets interrupted: check content input and connection stability

If you see “send failed” or “request error,” start by shortening what you’re sending—avoid pasting very long text, special formatting, or large amounts of code blocks in one go. Overly long inputs or frequent retries can make Claude errors more likely. An unstable network can also interrupt replies, so try again after closing bandwidth-heavy apps such as downloads or video meetings. If the same content keeps failing, send it in a new chat once—some abnormal session states can also trap Claude error troubleshooting in a loop.

Chats not saving, file uploads failing, or permission prompts: review account and site settings

If conversations aren’t saving, check whether your browser blocks third-party cookies or has “clear data on exit” enabled. These settings can cause session state loss, showing up as Claude errors or history not updating. For file upload failures, try changing the file format and size, renaming the file using English letters and numbers, and making sure your network isn’t using an unstable proxy; disconnects during upload are common with large files. If you see account restriction messages or features marked unavailable, it’s usually related to service availability by region, verification requirements, or risk controls. For this type of Claude error troubleshooting, first make sure your account details and network environment match, then complete verification as instructed on the page or contact official support.