How to fix 502 Bad Gateway error?

We must be grateful to technology for making our lives easier, but that same technology often falls victim to technical glitches. 502 Bad Gateway is one such technical glitch you may encounter. It indicates that one server is unable to get some valid response from another server. If you're wondering what exactly the 502 Bad Gateway error is, keep reading.

502 What does Bad Gateway mean?

#It is simply an HTTP status code, similar to when a specific server was unable to receive a response from another server. 502 Bad Gateway error depends entirely on your specific setup. You may end up experiencing them in any browser at any given time across any operating system; regardless of device.

502 How does the Bad Gateway error occur?

Not all web servers describe this unique error in the same way. The following are common manifestations of the 502 Bad Gateway error you may encounter.

• HTTP 502
• 502 Proxy Error
• 502 Bad Gateway
• 502. This is an error
• Error502 Bad Gateway
• 502 Service Overload
• 502 Gateway Error NGINX
• HTTP Error 502 – Gateway Error
• Gateway Error: Proxy Server Received Invalid response from another server
• 502 Server Error: The server encountered a temporary error and was unable to complete your request.

When we receive a Bad Gateway error during a Windows update, it usually generates the 0x80244021 error code or the following message: WU_E_PT_HTTP_STATUS_BAD_GATEWAY.

When we encounter similar errors while using Google services, such as its search engine or Gmail, they usually show " on the screen Server error" or just "502" is displayed.

Twitter's "Fail Whale" error saying "Twitter is over capacity" is a 502 Bad Gateway error (however, experts tell it is 503 error).

502 Bad Gateway error appears in a single browser window, just like a regular web page.

do you know?

Microsoft IIS servers often provide more information about the cause of any specific gateway error by appending an extra number after the initial 502, such as the number in "HTTP Error 502.1". In this case, the web server most likely received an inappropriate response while acting as a gateway.

Insight: HTTP error 502.1 or similar errors are similar to CGI application timeout issues, and the troubleshooting process should be similar to 504 gateway timeout issues.

Why does a 502 Bad Gateway error occur?

• The origin server is overloaded or down.
• The server crashed.
• The domain name cannot be resolved.
• The firewall is causing some problems.

In most cases, HTTPerror 502 bad gateway Cloudflare occurs when your origin server (for example, your web host) returns this code, and Cloudflare will then Code returned to your web visitors. Whenever this happens, you'll see a branding error from Cloudflare.

Errors similar to 502 Bad Gateway

The error messages mentioned below are relatives of the Gateway error error due to a malfunction of a specific website:

• 500 Internal Server Error
• 503 Service Unavailable
• 504 Gateway Timeout

There are many other client HTTP status codes, such as the extremely common " 404 Not Found error". If you encounter such an error, please contact the website or its host immediately!

As a web developer, how do you fix 502 Bad Gateway errors?

If you as a web developer or website owner are encountering error 502 Bad Gateway, then there may be some reasons for this error on your origin server. Here I have listed some suggestions to fix this error, for example:

• Use ping test or traceroute to check if your server is reachable.
• If you see unusual discard history, please check your firewall logs.
• If you are using Cloudflare, try disabling it. Because if you have reached a certain specified limit, then Cloudflare will send a 502 Bad Gateway error to your visitors.

How to fix 502 Bad Gateway error as a guest?

Since 502 errors are network errors between servers on the Internet, this means that the problem is not necessarily related to your Internet connection or computer. If you encounter a 502 Bad Gateway on Nginx, please fix it immediately. Here, we have mentioned the steps to fix 502 bad gateway error.

Refresh the page

• Try reloading the URL by pressing Ctrl R or F5 on your keyboard. You can also do this by clicking the refresh button.

• This error indicates a network error and is beyond your control. These may be temporary errors. Try loading the page again will usually resolve the issue.

Start A new browser session

To fix this error, you can Start a new browser session by closing all previously open browser windows that may be useful. After you open a new browser, it's time to try opening the webpage you're looking for again.

Clear browser cache and delete cookies

Try clearing the cache in your browser to fix this error. Corrupt or outdated files stored in the browser can cause gateway issues. Deleting these cache files and cookies usually resolves this issue. To do this, follow these steps:

• Click on the three vertical dots in the upper right corner of your Chrome browser and navigate to the Settings option .

• The down side is going to the Advanced option.

• Under the Privacy & Security tab, navigate to the option Clear browsing data.

• Now navigate to the Advanced tab. Select a time range and check the box in front of the available options, and finally click Clear Data.

Launch the browser in safe mode

You can first delete only those cookies linked to the site where you are facing this 502 error , instead of clearing all cookies from your browser storage. However, if the problem persists, feel free to delete all cookies; even those belonging to other websites.

• It is always recommended to launch your browser in Secure Mode (also known as Incognito Mode), especially when faced with this Bad gateway issues. Running the browser in safe mode allows it to run without extensions and add-ons; as it follows its default settings.

• If the error no longer occurs when running the browser in safe mode, make sure that another browser extension or incorrect setting is causing the problem. Manage your browser settings And optionally choose to default or disable your browser's extensions. This way, you will understand the root cause of this problem and hopefully fix it permanently.
• Your browser's safe mode is very similar to the safe mode in Windows, but they are not exactly the same. You don't need to start Windows in Safe Mode to run the browser in Safe Mode.

Try other browsers

If one browser doesn't work, try another. If you are facing gateway issues with Chrome, launch Firefox or any other browser immediately.

If the alternate browser does not encounter a bad gateway error, you can now determine that the original problem was with your previous browser. We assume that you have followed all of the troubleshooting advice listed above, if you are still experiencing gateway errors you may need to reinstall your browser and verify that the problem goes away.

If you have installed MS Forefront TMG SP1 and are receiving the "Error code: 502 Agent Error" message, we recommend that you download Software Update 1 for Microsoft Forefront Threat Management Gateway (TMG) 2010. You may also consider installing this software if your network logins frequently fail.

However, you should keep in mind that this troubleshooting method is not a common solution for 502 proxy error messages, it only applies to the above-mentioned situations. Forefront TMG 2010 is a commercial software package, as you probably know by now.

Restart your computer

There are many temporary issues related to your computer and how it connects to the network that can determine 502 The reason for the error, especially if multiple websites are showing this error. Restarting the computer often helps resolve this issue.

Restart your network devices

Unknown issues with routers, modems, switches, or other network devices can also cause 502 errors. Restarting these devices can help you overcome such issues.

Fix DNS Issues

This error can also occur due to DNS issues. To fix this error 502 Bad Gateway, you need to fix the DNS issue. To do this, follow these steps:

• Press the Windows X key and open the Command Prompt.

• Type ipconfig / flushdns and press Enter.

• As a result, it will display "DNS Resolver Cache Flushed Successfully".
• Close CommandPrompt and check for errors.

If the error persists, then changing the DNS servers on your computer or router may resolve the issue for you. Typically, Bad Gateway errors are caused by temporary DNS server issues.

Contact the website administrator

#If you are still facing the gateway error error, the problem is not with your settings but may be the source to the specific website you are looking for. In this case, it might be a good idea to contact the website. Assuming that the site is the culprit, its administrators may have already started working on correcting the source of their site's Bad Gateway error. Confirming things from your end gives you the flexibility to understand the characteristics of the problem. Once you understand the cause of such bad gateway errors, you will have the opportunity to try new troubleshooting techniques.

Contact your ISP

Please contact your ISP (Internet Service Provider). If your computer, browser, and network are all functioning properly, and the webmaster reports that the page or site is functioning properly, the 502 Bad Gateway issue may be caused by a network issue that your ISP may be responsible for.

Come back later

Whether it says "Come back later" or not, this specific bad gateway error message is definitely related to your ISP or website host Question - Either party can even confirm this if you contact them directly.

If this is the case, the 502 error may take a while to resolve because the error is beyond your control.

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