502 Bad Gateway
5xx Server Error. A server acting as a gateway or proxy received an invalid response from the upstream server it was trying to reach.
5xx Server Error
What it means
A server acting as a gateway or proxy received an invalid response from the upstream server it was trying to reach.
Common causes
A backend server crashed, is overloaded, restarted, or a proxy/load-balancer configuration issue between it and the client.
How to fix it
Retry the request after a short wait. If you run the server, check the backend's logs and health, and the proxy/load-balancer configuration.
Frequently asked questions
What does HTTP 502 mean?
A server acting as a gateway or proxy received an invalid response from the upstream server it was trying to reach.
What causes a 502 Bad Gateway?
A backend server crashed, is overloaded, restarted, or a proxy/load-balancer configuration issue between it and the client.
How do I fix a 502 error?
Retry the request after a short wait. If you run the server, check the backend's logs and health, and the proxy/load-balancer configuration.
Other 5xx Server Error codes
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