- Understanding the Error
- Error 522 indicates a timeout between Cloudflare and the origin server
- Cloudflare sends SYN packets, which must be responded to within 15 seconds
- Origin server must respond to GET requests within 90 seconds
- Common Causes
- Server overload due to high request volume
- Blocked or incorrect Cloudflare IP addresses
- Disabled Keepalive feature
- Incorrect DNS settings
- Solutions
- Check Cloudflare's system status first
- Verify hosting provider maintenance or outages
- Use traceroute to check server connectivity
- Whitelist Cloudflare IP in .htaccess
- Adjust DNS settings in Cloudflare dashboard
- Enable Keepalive feature
- Monitor resource usage and optimize server performance
- Alternative Methods
- Use VPN with distant location
- Try accessing through alternate domain
- Wait a few minutes if server overload is causing the issue