Claude FAQ: Login verification, inability to reply, and handling account restrictions

When using Claude, the most common issues aren’t “not knowing how to use it,” but getting stuck at login, failed sends, or having your account restricted. Below, I break down the high-frequency problems by scenario and provide an actionable troubleshooting order to help you get Claude back to normal with as little hassle as possible.

Login & verification: Page keeps spinning, verification email not received

If the Claude login page keeps spinning, first try your browser’s incognito/private mode and clear cookies and cache for the Claude site; in many cases an old session or an extension script blocks the verification flow. If you have ad blockers, script managers, or privacy/anti-tracking extensions installed, temporarily disable them and try again.

If you don’t receive the verification email, first check your spam folder and “Promotions/Subscriptions” categories, and whitelist the sender’s domain; also confirm your mailbox isn’t using overly strict filtering rules. If there’s still no email, logging in again with a different email address is usually faster than repeatedly refreshing.

Can’t reply or “request error”: Troubleshoot from network to service status

If Claude shows “request failed” or “unable to generate a reply,” first open other websites on the same network to rule out a local connectivity outage; then try switching networks (e.g., from Wi‑Fi to a mobile hotspot) to see whether it’s a routing/line issue. Frequently switching proxies or nodes can trigger security checks, so keep the network stable before retrying Claude.

If it still fails after multiple retries, check Anthropic’s official status page (status.anthropic.com) to confirm whether there’s a service disruption. When the server side is unstable, continuing to refresh only increases the number of failed attempts; waiting a while before returning to Claude is easier.

Chats & files: Content not showing, upload failures, truncated output

If your Claude chat list is blank or your history disappears, first confirm whether you switched accounts or browser profiles; it’s easy to log into the wrong one when using multiple Chrome profiles on the same computer. If only a single conversation won’t open and refreshing doesn’t help, copy the current page link into a new tab and open it.

File upload failures are usually related to files being too large, unsupported formats, or network interruptions; try converting documents to a more universal format (such as PDF/plain text) and reduce the number of files uploaded at once. If Claude’s output is truncated, split the task into two steps: first ask Claude for an “outline/section plan,” then ask it to continue writing section by section—this has a higher success rate.

Account restrictions & security: Being asked to verify, access limits, how to avoid repeatedly triggering them

If Claude says access is restricted or additional verification is required, a common cause is abnormal login behavior (logging in from multiple locations in a short time, frequently changing network environments). First log out of Claude sessions on all devices, then log in again on a fixed network, avoiding repeated back-and-forth switching within the same time window.

If you suspect your account is at risk, the first thing to do is change your email password and check your email login history, because Claude’s verification emails depend on email security. If you still can’t recover access, submit a support ticket via the help entry on the Claude page. Describing the error message, time of occurrence, and environment makes it easier to identify and resolve than simply saying “it doesn’t work.”