How to Fix the 504 Gateway Timeout Error

How to Fix the 504 Gateway Timeout Error?

When browsing the internet, it is common to come across some errors. Errors that prevent you from enjoying the website you want to visit. A code that will have different causes and solutions expresses these errors. Today, we will focus on how to fix the 504 gateway timeout error.

The 504 error is one of the most frequent when browsing. Fortunately, it has several solutions that you can try, whether you are a visitor or a site administrator.

One detail that should be clear from the start is the first number of the error, which in this case is 5. This is an indicator that the problem is caused by a server malfunction. This situation makes it impossible to connect the two parts: the website and the user trying to access it.

So, in general, a 504 error means that when you try to load the web page, the server responsible for delivering the data does not respond.

However, this can happen for many different reasons. Together with the solutions and a clear explanation of what the 504 gateway timeout error means, we are going to give you this article. Ready for solutions?

Here we go!

What Does 504 Error Mean?

As we said earlier, you may encounter different types of errors when browsing, caused by various factors. And to help you find the cause, there are HTTP status codes.

These codes appear on the error screen that replaces the website.

Every HTTP status code that starts with 5 implies an error on the servers. As an example, error 503 means that the server cannot serve you at this time. But there is more.

There is also the 502 error, and so on. When you reach the 504 gateway timeout error, which implies a delay in the server’s response time.

It is probably because of the inability to connect the parties to load the web page correctly. If there is no response from the server within a particular time, the browser proceeds to display error code 504.

Different Messages for the Same 504 Error

This error not only occurs on computers but on all types of devices that access web pages. So you can encounter it on a smartphone, tablet, or even while browsing on a console. It’s universal!

Of course, the message that appears to announce this error may vary depending on the browser. Some of the most frequent messages are these:

  • 504 Error
  • HTTP 504
  • 504 Gateway Timeout
  • Gateway Timeout Error
  • 504 Status Code

It should be noted that there are other ways in which this error manifests itself, but generally, the ‘504’ or ‘Gateway Timeout’ appears.

How to Fix 504 Gateway Timeout Error as a User?

Encountering a 504 error is, unfortunately, relatively common.

Of course, you should know that, unlike its predecessor, error 503, a 504 error does not respond to a selective maintenance notice from the administrator. Here, we are talking about a connection problem.

If that’s the case (as it turns out most of the time), there’s little you can do beyond wait a bit or contact the webmaster, just in case. However, it is worth mentioning that, when it comes to a problem with your configuration or device, there are multiple solutions, which we will explain below.

Press the F5 Button

It’s that simple. Sometimes, you can fix the 504 error by pressing F5 (refresh). Because it is the simplest solution, it is best to put it into practice first.

What this will generate is the updating of the page, trying to connect again. Since, in some cases, it’s just a brief bottleneck in website resources, it might work. By updating, you are given a new opportunity to respond correctly to the request.

Restart the Router and Other Devices

When you try to access several web pages, they don’t work, and it happens even on different devices. It’s time to take action. If you keep seeing error code 504, the problem likely comes from your network devices.

To resolve this, you can reset them by simply unplugging them from the power outlet for about 15–20 seconds. This decongests them, in case that is the problem. If so, you will be able to navigate smoothly as soon as they load again.

On the other hand, if you have changed any type of settings on your network devices and then started seeing error 504, a simple solution is to reset to factory settings. You can contact your provider if you don’t know how to do it.

Modify the DNS Server

The DNS server, in general, is responsible for translating domains into IP addresses and vice versa. In addition, it is what allows you to enter a website by entering your domain name.

Now that you are clear about what a DNS server is, an important detail to keep in mind is that it is often assigned automatically. Luckily, you can change it if you want.

Thus, in some cases, if the DNS server does not respond, a 504 error may occur, preventing it from connecting to the appropriate IP address.

To solve it, you will simply have to change servers. Fortunately, there is a list of free servers that you can access without much problem.

Check Antivirus to Fix 504 Error

The anti-virus may cause delays in loading your pages as it performs security checks, giving it time to establish a connection with the servers.

To solve this, you can create a momentary exception and check if this has been solved, or disable the antivirus temporarily and try to access the website. Of course, let it be a website that you really trust.

If this is the case, establish that the website is trusted in your browser or antivirus. This way, it won’t happen again. If your antivirus is paid, you can also contact the support team.

Check Proxy Server Settings

When none of the above has worked for you, the next step you could take is to modify your proxy server settings. And a bad configuration can cause this and other errors. Careful!

To check that everything is going well, you just have to take a few simple steps: In your browser, you must go to settings, then advanced settings, and look for proxy settings.

In most cases, you will find that the selection is automatic. However, you can choose another server and modify it to verify that this is the problem that is generating the 504 error.

Contact the Web Administrator

If you have tried all of these solutions and the 504 Gateway Timeout error continues to appear, it is best to contact the website administrator or your Internet provider if you can.

This way, you will be able to determine if the problem is outside your range of action and is something bigger. It is another way to verify the origin of the situation when all else fails.

Come Back Later

It is also possible that the website server has problems or a bad configuration and, after a while, the administrators have already taken care of solving it. And the 504 Gateway Timeout error may resolve itself by waiting a little time and reloading the page later.

Remember that many times this error does not come from you, and there is nothing you can do to fix it. In those cases, patience is the best response.

How to Solve 504 Error If You Manage a Website?

When you manage a website, whether for a personal project, a company, or a client, you always seek to give users the best experience when entering and browsing the site.

Therefore, it is essential to get web hosting with the best features and security, to guarantee that everything works correctly. Check if they can also be there to offer you quick response technical support to solve errors such as the 504 Gateway Timeout.

Outside of this, of course, you must have knowledge about how to solve error 504 (Gateway Timeout) if you are an administrator. And this way, you can solve it faster and reduce the consequences of a downed website.

Check the Operation of the CMS

The 504 error does not always have to do directly with a problem on the server. Since, in some cases, it may be a problem in the CMS, which manages the content of the system, or in a server application that is malfunctioning.

In addition, a change in the configuration that has triggered an error can cause it, or it can also be because of an incompatible or faulty update.

Therefore, you must make backup copies from time to time and thus have a backup in case you need it.

Among the causes of a 504 error because of problems in the CMS is the use of plugins that generate incompatibility with others, are not updated, or have been installed incorrectly.

To fix this, we recommend making that backup first. Then proceed to deactivate each plugin one by one and check if the page works again. In this way, you can find the origin of the error.

Increase the Resources on Your Website

As we mentioned before, it is possible that what is causing the 504 error on your website is insufficient resources. Both PHP workers and a poor proxy server for the traffic the site is receiving.

This, generally, happens when a website begins to receive a greater number of users than expected and exceeds the resources it has available in its hosting service. It is something that frequently happens during days like Black Friday, Diwali, or Cyber Monday.

To solve this, it is best to have a hosting service that allows you to increase or reduce the resources available for your website so that there is no shortage at a peak time of requests.

Try Disabling CDNs

When you use a service like Cloudflare, although unlikely, it can be the source of a 504 error. To rule this out, it is best to disable CDNs.

Temporarily disable the CDN and wait a while. Then, reload the page and check if the problem has been solved since in some cases it can work if the service you have is failing.

Proxy Server Settings

If the proxy server configurations are wrong, it is possible that it blocks some user requests by mistake, influencing the appearance of the 504 error in some cases.

To resolve this issue, check the Nginx.conf file and see if everything is working as it should.

Contact Your Hosting Support

When the above solutions do not work to resolve the 504 Gateway Timeout error, it may be a problem with the hosting service you have.

This means that the error goes beyond what you can do. Here, the solution is to contact your service provider’s support, provide details of this problem, and wait for a solution from them. Patience!

It is also important that you ask for help if you suspect that it may be a virus that is overloading your website with many ghost requests.

I hope the answers will solve the error in the 504 code. But what causes this error to appear instead of websites? Below is the answer.

What Causes the 504 Gateway Timeout Error?

This occurs when a server or network interface fails to respond within a specified time. Put simply, it is as if one of the links in a chain has broken, and there is no continuity.

The complex part is determining what causes this lack of continuity in the servers since it can be anything from a router problem to more complex issues with the DNS system.

Next, we review the most common causes of error 504:

Router Overload on the Local Network

It is possible that if the router of a local network is saturated, it will be unable to establish a connection with the servers you want to reach. This fails the connection chain, making it impossible for web pages to be displayed.

It is worth noting that if this is the case and you load other web pages, the problem should persist, unlike when it is an external problem exclusive to one site.

Proxy Configuration Error or Crash

Like the router, a proxy server, by exceeding its response capabilities, can collapse, thus making all connections that use it as an intermediary impossible.

On the other hand, an error in the proxy configuration resulting from a custom modification can cause this error. Be careful with that!

Pocos PHP Workers

PHP workers are elements that are responsible for processing and generating HTML pages and providing their service to the requests of users who visit the website.

If a page has a few PHP workers and many requests, those that cannot be processed will enter a waiting list. If it becomes very large and takes a long time to load, a 504 error may be generated. The solution is to expand resources or, of course, wait.

Moved or Wrong Domain

Domains are the translation of an IP address, so if the first one has moved to another IP or has changed its name, it may cause a 504 error when trying to connect.

Antivirus Causing 504 Error

Antivirus software can block a user’s requests when attempting a connection that the program may consider suspicious.

It can also delay the connection time while performing security procedures and, if the configuration is incorrect and takes too long, thus generating the 504 error.

Poor Website Server

If the website server has few resources, it can collapse due to high user demand or requests. And even if it doesn’t crash, if its response time is slow, it can lead to a gateway timeout.

Now that you know how to fix the 504 error, if you have a bad experience with your hosting, leave it to the hosting provider. Contact them, and they will guide you.

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