Q: What does a 401 Unauthorized error mean? A: A server returns 401 when it cannot verify who you are, meaning the site or API needs valid credentials and did not get them. Your request may have had no token, a bad token, or an expired session. Q: What are the five quick steps to fix 401 Unauthorized error? A: To fix 401 Unauthorized error, use five quick checks: sign in again, clear cookies, confirm the URL, sync device time, and reset your credentials. Following these steps can restore access in minutes without risking your data. Q: How does signing out and signing in again help resolve a 401? A: Signing out and signing back in refreshes your session and often resolves expired or missing credentials. Do a hard refresh or use an Incognito/Private window to bypass stale cookies and, for APIs, resend the request with the correct Authorization header and token. Q: Why should I clear cookies and site data when I see a 401? A: Cookies can become expired or corrupt after long sessions or site updates, causing authentication failures. Clear cookies and cached images for the site, delete old saved passwords for that domain, then reload and sign in again. Q: What URL, method, and protocol checks can prevent a 401 error? A: Make sure the domain, subdomain, and path are correct and that you use https, and remove old bookmarks that point to staging or retired routes. Also confirm you are using the expected HTTP method (for example POST vs GET), since small URL mismatches and wrong methods often trigger 401. Q: How can device time and VPNs cause a 401 Unauthorized error? A: Device clocks that are a few minutes off can make tokens appear “not yet valid” or expired, so turn on automatic date and time to prevent this. Temporarily disable VPNs, proxies, or content filters because some networks strip auth headers or route you through regions the site blocks. Q: When should I reset my password or refresh API tokens? A: If signing in still fails after the quick checks, use the site’s “Forgot Password” link to change your password and confirm two‑factor codes. For APIs, refresh your OAuth token or create a new personal access token with the right scopes and revoke old tokens you no longer use. Q: What information should I collect before contacting support about a persistent 401? A: Gather the exact URL and time of the error, a screenshot of the 401 page and any request ID, your browser or app version, and your network type (home, office, VPN). Also note the steps you already tried so support can reproduce the issue more quickly.