Claude Troubleshooting Guide: Quick Fixes for Send Failures, Blocks, and Blank Pages

If Claude suddenly starts failing to send, shows a blank page, or says you’re blocked, it’s usually not that your “account is broken,” but that network issues, browser cache, or risk controls have been triggered. Below, organized by the most common symptoms, is a clear troubleshooting order and actionable fixes for Claude errors.

First, check whether Claude is having a server-side disruption

When Claude repeatedly shows “Something went wrong,” keeps spinning, or none of your chats can be sent, don’t rush to refresh over and over. It’s recommended to first check the official status page (Anthropic Status) to confirm whether there are any API congestion notices or outage announcements.

If the status page shows an issue, continuing to operate usually only makes Claude more likely to trigger rate limiting. In that case, pausing for a few minutes and trying again is often more effective than frequent retries.

Claude message send failure: start with the browser and network

If Claude occasionally shows “Failed to send” or doesn’t respond after you type, first open Claude in an incognito/private window to rule out extension interference. Ad blockers, script managers, and privacy/anti-tracking extensions are the most likely to affect Claude’s requests.

Next, clear the cache and cookies for the Claude site and log in again. On the network side, try switching between Wi‑Fi and cellular data, or change your DNS (e.g., 1.1.1.1 / 8.8.8.8). Many blank Claude loads are caused by DNS resolution problems or an unstable route/link.

Claude says you’re blocked or keeps asking for verification: it’s likely risk control

If Claude shows “Your request has been blocked” or repeatedly prompts for verification, it’s usually related to an unusual IP, a proxy node, or high-frequency requests in a short period. First turn off unstable proxies/accelerators, switch to a cleaner network egress, and then try logging in to Claude again.

Switching between multiple accounts in the same browser can also easily trigger Claude’s risk controls. It’s recommended to stick to a single, consistent browser setup for Claude. If necessary, create a “clean environment” in a new browser to reduce the chance of being blocked.

Handling file upload errors and long-conversation freezing in Claude

When Claude uploads fail, first check file size, format, and the risk of network interruption. Splitting large files and using more common formats increases the success rate. If Claude gets slower and slower in a long conversation, it may be because the context is too long, increasing rendering and request pressure.

A practical approach is to start a new Claude conversation and copy the key conclusions over to continue; or first ask Claude to summarize the main points before moving to the next round. This reduces lag and also lowers the probability of send failures.

Still not solved: collect Claude’s key information in one go

If Claude still remains abnormal, it’s recommended to record the error message text, reproduction steps, network environment, browser version, and whether extensions are used, and save screenshots. Then contact official support or submit feedback—the more complete the information, the easier it is to pinpoint the Claude issue.

During troubleshooting, avoid “rapidly clicking retry,” as this makes Claude more likely to trigger rate limiting or verification. Follow the steps above one by one, and in most cases you’ll be able to troubleshoot Claude errors effectively.