Archive for the ‘502 bad gateway’ Category

Nobody wants to be prevented from reaching their desired URL. Nobody wants to be prevented from blogging or updating their webpages to help attract more business. While nobody wants these issues, they do occasionally happen. One of the most common errors that can cause a lot of frustration is the 502 Bad Gateway Error. The image to the right (which is clickable to get a bigger view) is an example of what a 502 Bad Gateway Error response might look like.

So what is a 502 Bad Gateway Error and why do they happen? This type of error message is a web protocol status message. It indicates that there is a communications error between an upstream server and the server that is acting as the gateway or proxy to fulfill the client (i.e. web surfer) request to access a particular URL. Basically when you type in the URL you want to access, there is a communication error that prevents access. While there is a common misconception that this communications error means that an upstream server is down, this is not indicated by this type of error. What it does mean is that upstream server and the server acting as the gateway or proxy do not agree on the data exchange protocol. That is why this is a protocol status error and not an error with an individual computer. The appearance of this message generally means that the upstream server and the gateway or proxy server have been programmed incorrectly or incompletely.

Even though this is not an individual computer issue About.com does recommend a few things to try to resolve this issue:

1. Retry the web page by clicking the refresh/reload button or trying the URL from the address bar again. Even though the 502 Bad Gateway error is reporting a networking error outside of your control, the error may only be temporary. Trying the page again will often be successful.
2. Come back later. Since the 502 Bad Gateway error message is an issue with the web site’s network, everyone visiting this site is probably experiencing the same problem as you. Chances are an issue like that has already been brought to the attention of an administrator at the web site and someone is working to resolve it.
3. If you can’t wait any longer for the problem to be resolved or if you’d like to help out, you may want to attempt to contact the webmaster or another website contact yourself and advise them of the 502 Bad Gateway error you are receiving.

This type of error message is quite frustrating for a user who really has little means to correct it. A permanent fix for this issue ultimately depends on the complete and correct programming of the upstream server and the proxy or gateway server by the webmaster.

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