502 Bad Gateway Error: What Is It and How To Fix?

July 14, 2018

While working over the internet, it is quite common to find error codes. Though a common thing that we notice, still it is frustrating to get these errors. Seeing the error code, many things run our mind as to why it happened? Is it a problem with internet connection? Or any OS problem? While some of the errors may happen due to system issues, there exists some HTTPS error codes like the 502 bad gateway error that happens when one server receives an invalid response from another server. Google forums gets overloaded with customer grievances when they see the error ‘502 Server Error-Bad Gateway’. Don’t get panic! This is the common error in the Google applications that we receive when there is no proper response from the server end. While, still if you are confused of what is 502 bad gateway, read on guide to understand this error 502 bad gateway and the process to fix them.

What Is 502 Bad Gateway Error?

The HTTP protocol 502 Bad Gateway means is a server error which indicates that the server, acting as a gateway received an invalid response from the original web server. Now that we got some basic idea of what is 502 bad gateway! Let us have a quick look of what actually happens internally. When a website is opened, the browser sends requests to the original server. If everything is well and fine, then the server sends back the requested information and website loads successfully. In case, the server doesn’t agree with the server protocols, then it will send an invalid response thus resulting in connection time out and 502 bad gateway error. However, the point to be remembered is the connection to the server and browser is not straight forward. There exists a proxy server before connecting to the host website. So, it is quite hard to sort out which server is causing the issue. Few websites make use of multiple proxy servers, so things gets complicated further. In this guide, we will also have a look at simple ways to fix 502 bad gateway error.

502 bad gateway error

Error 502 Bad Gateway Variants

Website designers have the feasibility to design of how the 502 bad gateway error may look like. So, different websites show it in different variants. Some of the websites may even use different name to address this error. Below listed are some of the common error 502 Bad gateway variants that we come across usually while web browsing.

– 502 Bad Gateway
– Temporary Error (502)
– 502 Proxy Error
– HTTP 502
– 502 Service Temporarily Overloaded
– 502 Bad Gateway Nginx
– 502 Server Error: The server encountered a temporary error and could not complete your request
– Bad Gateway: The proxy server received an invalid response from an upstream server
– 502- That’s An Error
– HTTP Error 502 Bad Gateway

502 bad gateway error

While the popular Google services like Gmail or Google Search experience this 502 Bad Gateway then they just display it as a Server Error or just 502.

Reasons For The 502 Bad Gateway Error

An occurrence of the 502 bad gateway error means that reverse proxy server for the original website server did not receive proper response from web server. While the common cause of this error could be issues between online servers for which you never have any control. There is nothing wrong with the browser or the networking equipment or any system issue that you have once think of it to be. Upon the experience, we could find these few reasons that may result in the happening of 502 server errors.

– Websites With Improper Code: Some of the websites that run legacy applications or few websites that have improper programming code can definitely show impact in the website functionality thus yielding in 502 errors.
– Server Software Timeout: In case you find any web server responding lately or taking more time to load especially when the requests are at Nginix server then there is a chance of occurrence of error codes intermittently.

502 bad gateway error
– Overloaded Server: There is even a chance for few websites getting crashed due to server overload. Memory shortage can also result in server crash and displays the error 502 bad gateway error.
– Network Errors: Some of the network related issues like firewall blocks, routing problems, DNS issues and ISP related issues can result in 502 Bad Gateway.
– Frequent Restart of Web Server: When too many applications running on the server, there is quite a chance for the web server being clogged, due to which it may restart several times. This can cause error 502 bad gateway.

Also read: Windows 10 problems and how to fix it?

Methods To Fix 502 Bad Gateway Error

Clear Browser Cache: While accessing the website, if the browser is relying on cache rather than latest version, then simply reload the website few times and clear browser cache. This trick works across many web browsers. If even this trick doesn’t work then head to setting menu to clear the browser cache manually.

502 bad gateway error

Reload the Webpage: One of the simplest method to fix 502 bad gateway error is to try reloading the page. If it is a temporary error, then this trick would definitely work in loading the server. Even if the server is overloaded, reloading the page could give you access sooner.

502 bad gateway error

Start a New Browser Session: In case you find the webpage is not responding back for longer time and despite reloading the page if the same 502 bad gateway error persists, then try starting a new browser session. There is a chance that the error could be due to the issue that happened a few minutes ago. So, close the present browser session, clear the browsing history, cache and try loading the page with a new session.

Browse In Safe Mode: With the availability of several Google Chrome browser extensions, we often add them as a Chrome addon which could be a cause of 502 bad gateway error. Try disabling the plugins or run the browser in safe mode that makes the browser free from extensions. If this works, then definitely one of the browser extension is the cause of 502 error. Run the Google Chrome browser in night mode browsing for better reading experience.

Try Using Alternative Browser: There exists many alternative browsers for an Android smartphone, if one of the browser gives a 502 bad gateway error, then try opening it in different browsers like Google Chrome, Internet explorer, Safari, and more. If the use of alternative browser works out then probably the original browser is the root cause of problem. Try reinstalling the browser to avoid occurrence of the same error.

Restart Your Device: If neither of the above specified methods work out, then try opening the webpage after restarting the device. If there are any temporary issues running on your PC or laptop especially while connected to the network, then there is a chance of 502 error page. So, restart your device to make it work again.

Identifying and troubleshooting the 502 gateway error is quite a tedious task. Since it is not an error at the client side, it become difficult to know the exact reason for the error. Once the reason of occurrence of 502 bad gateway error is known, then with any of the above-specified methods we can try to fix the error.

No votes yet.
Please wait...

Comments (6)

  • before reading this blog i had no idea about 502 Bad Gateway Error ,thank a lot this blog is very useful and informative. from this blog i got an idea about how and why 502 Bad Gateway Error occur and how to resolve 502 Bad Gateway Error .hope to read more interesting updates from your side.keep it up.

    No votes yet.
    Please wait...

  • 502 gateway error is obvious in websites ,i have faced it many times .there are many reason for this ,when Domain name not resolvable or when The server is not reachable and firewall blocks the request between server and client .nice blog ! very informative and useful to me.

    No votes yet.
    Please wait...

  • 502 bad gateway is something most of us might have come across,before reading this blog I had no idea what is 502 bad gateway error ,sincerely thanks to this blog as they have provided lot of information about 502 bad gateway issue.really nice,description was very simple and easy for anyone to understand.great job folks.

    No votes yet.
    Please wait...

  • i always surf through internet for different purposes .i have very least knowledge on servers,networks and all.though i came across 502 bad gateway error which searching in google,but never paid attention to what it is or why it happens.accidentally i came across this blog and thanks to you people as i was finally able to understand about 502 bad gateway error.

    No votes yet.
    Please wait...

  • jabeer khan says:

    502 bad gate way is the issue i came across many times and i never understood the reason behind it.404 page not found, request timed out i faced these many times.loads of thanks for the information you people provided.

    No votes yet.
    Please wait...

  • amazing blog ! seriously i came across this issue several time ,before reading this i don’t even know what 502 Bad Gate way issue and why exactly it happens .thanks to this blog ,really nice information , for sure i am going to try this methods to fix this issue,i am just waiting for this error to happen so that i can test whether this method works or not.

    No votes yet.
    Please wait...

Your email address will not be published. Required fields are marked