What is a gateway failure
What is a 502 Bad Gateway error (and how can I fix it)?
A 502 Bad Gateway Error occurs when trying to visit a web page, but a web server receives an invalid response from another web server. Most of the time, the problem is with the website itself and there is not much you can do about it. However, sometimes this error can appear due to a problem on your computer or network equipment. Here are a few things you can try.
What is a 502 Bad Gateway Error?
A 502 Bad Gateway Error means that the web server you are connected to and acting as a proxy for relaying information from another server. However, it received a bad response from this other server. It is known as a 502 error because this is the HTTP status code that the web server uses to describe this type of error. These bad reactions can be due to a variety of causes. The server may be busy or there may be network problems between the two servers. This is only a temporary problem. There may also be a misconfigured firewall or even a coding error and the problem will not be resolved until those issues are resolved.
Just like with 404 errors, website designers can customize what a 502 error looks like. Hence, you might see 502 pages on different websites with different appearances. Websites may also use slightly different names for this error. For example, you might see:
- HTTP Error 502 Invalid Gateway
- HTTP 502
- 502 Service temporarily overloaded
- Temporary error (502)
- 502 Server Error: The server encountered a temporary error and was unable to complete your request
- 502 Bad Gateway nginx
The vast majority of the time, this is just a server-side bug of things you can't do anything with. Sometimes it's a passing bug. sometimes not. Still, there are a few things you can try.
Reload the page
Refreshing the page is always worth a try. Often times the 502 error is temporary, and a simple update can do the trick. Most browsers use the F5 key to refresh and also provide a refresh button anywhere in the address bar. It doesn't fix the problem often, but it only takes a second to try.
Check to see if the site is not available to anyone else
Also, whenever you can't get to a site (for whatever), you can check if it's just you having connection problems or if other people are having the same problems. There are plenty of tools out there, but our favorites are isitdownrightnow.com and downforeveryoneorjustme.com. Both work pretty much the same. Enter the url you want to check and you will get a result like this.
If you get a report that the website is down, there isn't much you can do, but please try again later. If the report shows the site is up, the problem may be with you. It is very rare for this to happen with a 502 error, but it is possible, and you can try some of the things we describe in the next few sections.
Try a different browser
There may be a problem with your browser that may precede the 502 Bad Gateway error. An easy way to check this is to use a different browser and see if it works. You can use Google Chrome, Mozilla Firefox, Apple Safari, or Microsoft Edge. If you are seeing the error in the new browser as well, then you know it is not a browser problem and should try another solution.
Empty your browser's cache and cookies
If you try to use a different browser this will work, it is possible that your main browser has cached outdated or corrupt files that could be causing the 502 error. Removing these cached files and trying to open the website could solve the problem.
Definitely worth trying, and we have a handy guide for you on how to clear your history on any browser.
CONNECTED:How to clear your history in any browser
Check your plugins and extensions
If you are using extensions in your browser, one or more of the extensions may be causing the problem. Try disabling all of your extensions and then accessing the website. If the error goes away after that, it is likely that a plugin is causing the problem. Activate your plugins one by one to find the culprit.
CONNECTED:How to uninstall extensions in Chrome, Firefox and other browsers
Restart your devices
So you've used a website verification tool and found that the website is down just for you. You tested a different browser and you have the same problem. So you know that the problem is probably on your side, but not your browser.
It is possible that there are some strange, temporary problems with your computer or network devices (WiFi, router, modem, etc.). A simple restart of your computer and network devices can potentially fix the problem.
Change your DNS server
Sometimes DNS problems can cause 502 errors. Changing your DNS servers is probably not okay, but it is possible. And it's not too difficult. Unless you changed them yourself, your Internet Service Provider may set up your DNS servers. You can move them to a third-party DNS server like OpenDNS or Google DNS to possibly fix the problem. And there are other reasons you might want to change DNS servers too, such as: B. higher speed and reliability.
Follow our guide with step-by-step instructions.
CONNECTED:The Ultimate Guide to Changing Your DNS Server
Photo credit: Micha / Shutterstock
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