HTTP 502 — Unable to Connect to the Origin Server

Concerning WordPress, different missteps can be without a doubt baffling and bewildering. A very few that evoke an emotional response are the white screen of death or the startling slip-up developing a database connection. Regardless, a considerably more popular one is the 502 horrendous entrance error.

Two or three days earlier, we went over this error while getting to the site and expected to fix it by whitelisting the Sucuri IPs. Around here at ARZHOST, we consistently get requests from our customers seeing the site error as a piece of our Server Management Services.

Today, “HTTP 502 — Unable to Connect to the Origin Server”, let’s see how our Hosting Expert Planners fix this error.

Why does HTTP 502 ill-suited to connect with starting server Sucuri occur?

Wave saw this fault happening when the Sucuri doesn’t get a response from the locales working with the server.

Furthermore, the slip-up happens in light of server down, network deterring, module errors, etc. “HTTP 502 — Unable to Connect to the Origin Server”, The mix-up while getting to the site takes after

Permits currently to follow how our Hosting Expert Planners help the customers with discarding this issue.

What Does 502 Bad Gateway Mean?

A 502 Bad Gateway error happens when a server going probably as an entrance or go-between gets an invalid response from the start server. It is named 502 wards on the HTTP status code that servers use to depict this sort of slip-up.

Projects and servers interface with each other using HTTP (Hypertext Transfer Protocol) status codes. Whenever you access a URL, “HTTP 502 — Unable to Connect to the Origin Server”, the program sends an HTTP sale to the webserver of the site page you’re getting to. The server then returns a status code close to the resources you referenced.

HTTP status codes are assembled into five server responses:

  • 1xx instructive
  • 2xx success
  • 3xx redirection
  • 4xx client error
  • 5xx server error

HTTP status codes starting with digit 5 relate to errors that happen when there’s an association fault or correspondence issue between web servers.

Other 5xx status codes or server errors consolidate the 500 Internal Server Error, 501 Not Implemented, “HTTP 502 — Unable to Connect to the Origin Server”, 503 Service Unavailable, and 504 Gateway Timeout. Anyway, the particular clarifications behind each fault vacillate, generally speaking, the explanation exists in the server.

Purposes behind 502 Bad Gateway Error

Before you can fix a 502 Bad Gateway error, “HTTP 502 — Unable to Connect to the Origin Server”, you truly need to examine the potential factors causing this error, for instance,

  • Disrupted region name. This happens when a region name isn’t embarking to the right IP. Recollect that if you have moved your region name to another host, your DNS changes might need up to 24 hours to be caused and dynamic.
  • Starting server over-trouble. Whenever a starting server runs out of resources, it can move past weight and crash, setting off a 502 Error. A surprising spike of traffic, low memory, and programming breaks are a piece of the ordinary purposes behind server over-trouble.
  • Program errors. On occasion, a program might show a 502 Error paying little heed to not having server or association issues. For the present circumstance, the error might be set off by damaged program expansions, for instance, commercial blockers, out-of-date program shapes, or demolished archives in your program store.
  • Home-network gear issues. If you experience a 502 Error in more than one site or program, there is a good chance that your association staff might be having a passing connection issue.
  • Firewall blocks. A firewall safeguards your site from any questionable traffic. Regardless, some firewall systems are over-delicate and might perceive sham up-sides. “HTTP 502 — Unable to Connect to the Origin Server”, The system might be impeding a specific ISP or a sale from a CDN.

502 Bad Gateway Error Variations

On account of the various projects, web servers, and working systems, a 502 awful section error can present itself in different ways. Anyhow, “HTTP 502 — Unable to Connect to the Origin Server”, completely has comparative importance. Coming up next are just a few a wide scope of assortments you might see on the web:

  • 502 Bad Gateway
  • Fault 502
  • HTTP Error 502 Bad Gateway
  • 502 Service Temporarily Overloaded
  • 502 Proxy Error
  • A reasonable white screen
  • 502 Server Error: The server encountered an ephemeral slip-up and couldn’t complete your sales
  • HTTP 502
  • Passing Error (502)
  • That is a slip-up
  • 502 dreadful entrance Cloud flare

Dreadful Gateway: The go-between server got an invalid response from an upstream server

  • Another assortment you might see is a 502 server error.

Furthermore, here is another assortment. 502 Web server got an invalid response while going probably as an entrance or delegate server. There is an issue with the page you are looking for, and it can’t be shown. “HTTP 502 — Unable to Connect to the Origin Server”, Right when the Web server (while going probably as an entrance or mediator) arrived at the upstream substance server, it got an invalid response from the substance server.

People Also Ask

Question # 1: Why do I keep getting bad Gateway 502?

Answer: What causes a 502 Bad Gateway error? Server overload: An overloaded server is one of the most common causes of a 502 error. This is where the server has reached its memory capacity, often activated by an unusually high number of visitors trying to access the same website.

Question # 2: Is 502 Bad Gateway a virus?

Answer: There’s more than one reason you’re seeing a 502 Bad Gateway error. Most likely, it’s because the origin server your computer is communicating with is down completely. Think of your firewall as a security system protecting your computer from harmful outsiders such as viruses, hackers, malware, and other dangers.

Question # 3: Is a 502 Bad Gateway my fault?

Answer: A 502 Bad Gateway Error is a general indicator that there’s something wrong with a website’s server communication. Since it’s just a generic error, it doesn’t actually tell you the website’s exact issue. When this happens, your website will serve an error web page to your site’s visitors, like the photo below.

Question # 4: What does Bad gateway 502 mean on Crunchyroll?

Answer: The Crunchyroll error 502 is often related to the incapacity of the proxy to get a valid response from the origin server. If there’s an issue with the servers, have patience and wait for the administrators to do their job.

Question # 5: What Causes Bad Gateway error?

Answer: Bad Gateway errors are often caused by issues between online servers that you have no control over. However, sometimes, there is no real issue but your browser thinks there are one thanks to a problem with your browser, an issue with your home networking equipment, or some other in-your-control reason.

How do we fix HTTP 502 unfit to interface with starting server Sucuri?

Around here at ARZHOST, “HTTP 502 — Unable to Connect to the Origin Server”, where we have throughout dominance in regulating servers, we see various customers face this fault.

Lately, one of the customers advanced toward us with a misstep. In the wake of checking, we could follow that the server is blocking Sucuri Firewall IP addresses. By and by, permits presently to see how our Hosting Expert Planners fix it.

1. Whitelist Sucuri IP address

“HTTP 502 — Unable to Connect to the Origin Server”, To fix the slip-up by whitelisting all the IP address extents of the Sucuri Firewall.

Here the customer uses the iptables firewall, and we added the IP areas to the iptables firewall. The Sucuri Firewall IP addresses, which have been whitelisted: This appropriate the issue.

2. Nginx arrangement

Another customer having an Nginx web server encountered a comparable issue. On checking, “HTTP 502 — Unable to Connect to the Origin Server”, we saw that the customer was getting the Nginx entry fault.

While getting the entry of the site from Nginx, caused a connection issue. The site entry in the Nginx game plan record was missing. The issue was that the site was passing through Sucuri and spots Nginx into a circle of questions.

  1. To avoid this we have added the going with to, etc/nginx/custom rules.
  • if ($host ~ <your region name>) {
  • set $PROXY_DOMAIN_OR_IP <your servers ip address>;
  • }

“HTTP 502 — Unable to Connect to the Origin Server”, This says that the Nginx site can be found at this IP address.

  1. Then, we have also added the site area to the record, etc/Nginx/custom local.
  2. Starting there forward, “HTTP 502 — Unable to Connect to the Origin Server”, we used the under request to check whether the segment is properly organized.
  • in – t
  1. Finally, “HTTP 502 — Unable to Connect to the Origin Server”, we restarted the Nginx server.
  • organization Nginx restart

This had settled the error.

Various responses for HTTP 502 ill-suited to interface with starting server Sucuri

Additionally, “HTTP 502 — Unable to Connect to the Origin Server”, the going with will moreover help with tending to this bungle.

  1. We want to clear the program store. For this, we go into customers Firewall settings on Website Security and clear the WAF (web application firewall) save.
  2. In explicit cases, the modules or subjects can cause this slip-up. With the objective that we will review all modules and subjects. Impairing every module and enabling them exclusively to recognize which are causing the working with errors. Finally, following crippling the module, the error got discarded.


To lay it out simply, “HTTP 502 — Unable to Connect to the Origin Server”, the misstep HTTP 502 unable to interface with starting server Sucuri happens when Sucuri can’t get a response from the locales working with the server. This has been revised by IP whitelisting, adding site section in Nginx, defective module, etc Today, we saw how our Hosting Expert Planners fix this screw-up.


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