HTTP troubleshooting
522 Connection Timed Out
Your uptime monitor detected that the edge proxy network was completely unable to establish a handshake connection with your origin web server before the allowed time limit ran out.
What 522 Status Code Means
- 1.
TCP handshake failure
The server did not respond to the fundamental synchronization pings sent by the proxy network routing layers.
- 2.
Server capacity overload
The backend machine was completely bogged down by a massive wave of traffic, ignoring new incoming connection attempts.
- 3.
IP routing blockades
The origin server's hosting provider network or router dropped the proxy network requests entirely before they arrived.
Troubleshooting checklist
- 1.
Verify origin server power
Log into your hosting provider dashboard to ensure the main server machine is powered up and running.
- 2.
Check server firewall walls
Review system iptables, fail2ban, or cloud network security groups to see if proxy IPs are completely blocked.
- 3.
Track hardware metric peaks
Analyze CPU and memory logs to see if your server was locked up at 100% capacity when the timeout hit.
- 4.
Examine network routing hops
Run a network path trace to see where data transmission packets are dropping off before hitting the server.
How to Fix It
- 1.
Whitelist edge network IPs
Safelist all official proxy network IP addresses inside your origin server firewall and network access groups.
- 2.
Upgrade processing hardware
Scale up your server hardware profile or add more processor cores to handle heavy connection queues.
- 3.
Optimize system socket settings
Adjust the server kernel network variables to handle thousands of concurrent connection attempts smoothly.
- 4.
Contact your hosting provider
Reach out to your infrastructure provider if a broader network outage or bad routing path is blocking data.
After the Service is Fixed
- 1.
Verify with Uptime Monitor
Confirm the monitor dashboard transitions back to a steady green status once connection paths open up safely.
- 2.
Set up infrastructure alerts
Configure instant notifications for whenever your host machine resource usage passes a 90% load threshold.
- 3.
Implement failover routing
Configure automated backup origin paths so your site stays up even if one hardware node drops out.
- 4.
Audit firewall tables monthly
Regularly clean out old firewall ban lists to ensure proxy networks are never accidentally blocked.