{"id":14261,"date":"2023-07-14T14:44:42","date_gmt":"2023-07-14T13:44:42","guid":{"rendered":"https:\/\/da-manager.com\/blog\/?p=14261"},"modified":"2026-05-20T17:29:17","modified_gmt":"2026-05-20T16:29:17","slug":"quickly-fix-annoying-cwp-502-bad-gateway-error","status":"publish","type":"post","link":"https:\/\/da-manager.com\/blog\/quickly-fix-annoying-cwp-502-bad-gateway-error\/","title":{"rendered":"Quickly Fix Annoying CWP 502 Bad Gateway Error"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_83 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table of Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/da-manager.com\/blog\/quickly-fix-annoying-cwp-502-bad-gateway-error\/#What_is_a_502_Bad_Gateway_Error\" >What is a 502 Bad Gateway Error?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/da-manager.com\/blog\/quickly-fix-annoying-cwp-502-bad-gateway-error\/#What_Causes_CWP_502_Bad_Gateway_Error\" >What Causes CWP 502 Bad Gateway Error?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/da-manager.com\/blog\/quickly-fix-annoying-cwp-502-bad-gateway-error\/#How_to_Fix_the_502_Bad_Gateway_Error\" >How to Fix the 502 Bad Gateway Error<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/da-manager.com\/blog\/quickly-fix-annoying-cwp-502-bad-gateway-error\/#CWP_Web_Server_Reset_%E2%80%93_Quick_Fix\" >CWP Web Server Reset &#8211; Quick Fix!<\/a><\/li><\/ul><\/nav><\/div>\n\r\n<p class=\"wp-block-paragraph\">No one likes to see error messages on their screen. In most cases, it creates a feeling of helplessness. You just want to call someone or take a break. The CWP 502 bad gateway error is no different. If you own a server and are facing this error, you can relax. We\u2019ll help you fix it.<\/p>\r\n\r\n\r\n\r\n<p class=\"wp-block-paragraph\">The <a href=\"https:\/\/control-webpanel.com\/\" target=\"_blank\" rel=\"noopener\">CentOS Web Panel<\/a> serves PHP pages fast by using PHP-FPM, and PHP-FPM has a knack for throwing bad errors when it\u2019s down.\u00a0<\/p>\r\n\r\n\r\n\r\n<p class=\"wp-block-paragraph\">But what could lead to the unavailability of PHP-FPM and the consequent CWP 502 bad gateway error?<\/p>\r\n\r\n\r\n\r\n<p class=\"wp-block-paragraph\">We\u2019ll find out in a coming section. However, before we learn about the causes, what is a 502 bad gateway error?<\/p>\r\n\r\n\r\n\r\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"What_is_a_502_Bad_Gateway_Error\"><\/span><strong>What is a 502 Bad Gateway Error?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\r\n\r\n\r\n\r\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"548\" class=\"wp-image-14265\" src=\"https:\/\/da-manager.com\/blog\/wp-content\/uploads\/2023\/07\/cwp-502-bad-gateway-error-3.jpg\" alt=\"\" srcset=\"https:\/\/da-manager.com\/blog\/wp-content\/uploads\/2023\/07\/cwp-502-bad-gateway-error-3.jpg 1024w, https:\/\/da-manager.com\/blog\/wp-content\/uploads\/2023\/07\/cwp-502-bad-gateway-error-3-300x161.jpg 300w, https:\/\/da-manager.com\/blog\/wp-content\/uploads\/2023\/07\/cwp-502-bad-gateway-error-3-768x411.jpg 768w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\r\n\r\n\r\n\r\n<p class=\"wp-block-paragraph\">A 502 bad gateway error is a report that indicates a fault in the communication lines between the user and the server. In many cases, it manifests as a blank page which means that the server was unable to fetch and serve the user\u2019s request.<\/p>\r\n\r\n\r\n\r\n<p class=\"wp-block-paragraph\">Having learned this, let\u2019s now see what causes the CWP 502 bad gateway error.\u00a0<\/p>\r\n\r\n\r\n\r\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"What_Causes_CWP_502_Bad_Gateway_Error\"><\/span><strong>What Causes CWP 502 Bad Gateway Error?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\r\n\r\n\r\n\r\n<p class=\"wp-block-paragraph\">Since CWP uses PHP-FPM to serve pages created with the PHP scripting language, it stands to reason that such pages won\u2019t load if PHP-FPM fails.<\/p>\r\n\r\n\r\n\r\n<p class=\"wp-block-paragraph\">PHP-FPM, or PHP FastCGI Process Manager, is an application in your server environment that executes PHP codes and helps the server (hardware &amp; OS) generate dynamic content for the user.<\/p>\r\n\r\n\r\n\r\n<p class=\"wp-block-paragraph\">PHP-FPM could become unavailable due to a number of reasons. It could be a security attack from malware, a network connectivity issue, a server overload, or hardware failure.<\/p>\r\n\r\n\r\n\r\n<p class=\"wp-block-paragraph\">Whatever the cause, the CentOS web panel will return a 502 bad gateway error when it can\u2019t process PHP requests due to PHP-FPM failure. At Da-Manager, our <a href=\"https:\/\/da-manager.com\/contact-us\/\">support engineers<\/a> take definite steps to resolve this problem, and we\u2019ll go through the process in the following section.<\/p>\r\n\r\n\r\n\r\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"How_to_Fix_the_502_Bad_Gateway_Error\"><\/span><strong>How to Fix the 502 Bad Gateway Error<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\r\n\r\n\r\n\r\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"960\" height=\"648\" class=\"wp-image-14266\" src=\"https:\/\/da-manager.com\/blog\/wp-content\/uploads\/2023\/07\/cwp-502-bad-gateway-error.jpg\" alt=\"\" srcset=\"https:\/\/da-manager.com\/blog\/wp-content\/uploads\/2023\/07\/cwp-502-bad-gateway-error.jpg 960w, https:\/\/da-manager.com\/blog\/wp-content\/uploads\/2023\/07\/cwp-502-bad-gateway-error-300x203.jpg 300w, https:\/\/da-manager.com\/blog\/wp-content\/uploads\/2023\/07\/cwp-502-bad-gateway-error-768x518.jpg 768w, https:\/\/da-manager.com\/blog\/wp-content\/uploads\/2023\/07\/cwp-502-bad-gateway-error-400x269.jpg 400w\" sizes=\"auto, (max-width: 960px) 100vw, 960px\" \/>\r\n<figcaption class=\"wp-element-caption\">404 Error Website Web Mistake Alert Computer<\/figcaption>\r\n<\/figure>\r\n\r\n\r\n\r\n<p class=\"wp-block-paragraph\">Our support team recently got a call from a customer, and it was about the 502 bad gateway error.\u00a0<\/p>\r\n\r\n\r\n\r\n<p class=\"wp-block-paragraph\">She encountered the error while trying to run some administrative tasks\u00a0 through her CentOS Web Panel. The error denied her access to the admin panel, and it had to be fixed immediately.<\/p>\r\n\r\n\r\n\r\n<p class=\"wp-block-paragraph\">The first thing we did to resolve the issue was to ascertain the current status of the server. We used the following command to check the service status.<\/p>\r\n\r\n\r\n\r\n<pre class=\"wp-block-code\"><code>systemctl status cwp-phpfpm<\/code><\/pre>\r\n\r\n\r\n\r\n<p class=\"wp-block-paragraph\">The command returned an inactive status, meaning we had to restart the service. Successfully restarting the service required knowledge of the source of the error. We checked the log files to locate the user from which the error originated using the following command:<\/p>\r\n\r\n\r\n\r\n<pre class=\"wp-block-code\"><code>tail \/usr\/local\/cwp\/php71\/var\/log\/php-fpm.log<\/code><\/pre>\r\n\r\n\r\n\r\n<p class=\"wp-block-paragraph\">After locating the user, we deleted the following file related to the user error:<\/p>\r\n\r\n\r\n\r\n<pre class=\"wp-block-code\"><code><strong><em>\/usr\/local\/cwp\/php71\/etc\/php-fpm.d\/users\/sam.conf<\/em><\/strong><\/code><\/pre>\r\n\r\n\r\n\r\n<p class=\"wp-block-paragraph\">We deleted the file using the file deletion command:<\/p>\r\n\r\n\r\n\r\n<pre class=\"wp-block-code\"><code>rm -f \/usr\/local\/cwp\/php71\/etc\/php-fpm.d\/users\/sam.conf\r\n<\/code><\/pre>\r\n\r\n\r\n\r\n<p class=\"wp-block-paragraph\">Having deleted the error log file, we restarted the CentOS Web Panel PHP-FPM service in the command prompt with the following code:<\/p>\r\n\r\n\r\n\r\n<pre class=\"wp-block-code\"><code>systemctl start cwp-phpfpm<\/code><\/pre>\r\n\r\n\r\n\r\n<p class=\"wp-block-paragraph\">The restart resolved the error, and she could continue her admin activities as usual, delighted that her site was back online.<\/p>\r\n\r\n\r\n\r\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"CWP_Web_Server_Reset_%E2%80%93_Quick_Fix\"><\/span><strong>CWP Web Server Reset &#8211; Quick Fix!<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\r\n\r\n\r\n\r\n<p class=\"wp-block-paragraph\">In addition to the process outlined above, you can also quickly fix the CWP 502 bad gateway error by restarting the CWP server.\u00a0<\/p>\r\n\r\n\r\n\r\n<p class=\"wp-block-paragraph\">The appropriate command to use in this case will be. &#8230;<\/p>\r\n\r\n\r\n\r\n<pre class=\"wp-block-code\"><code>sh \/scripts\/restart_cwpsrv<\/code><\/pre>\r\n\r\n\r\n\r\n<p class=\"wp-block-paragraph\">Applying this reset command will restore operational status in most cases, and you can continue with your usual business and administrative activities.<\/p>\r\n\r\n\r\n\r\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"600\" height=\"327\" class=\"wp-image-14263\" src=\"https:\/\/da-manager.com\/blog\/wp-content\/uploads\/2023\/07\/cwp-502-bad-gateway-error.gif\" alt=\"\" \/><\/figure>\r\n\r\n\r\n\r\n<p class=\"wp-block-paragraph\"><strong>Conclusion<\/strong><\/p>\r\n\r\n\r\n\r\n<p class=\"wp-block-paragraph\">The CentOS Web Panel uses PHP-FPM in serving web pages created with the PHP scripting language. The CWP 502 Bad Gateway Error is usually a consequence of PHP-FPM failure.<\/p>\r\n\r\n\r\n\r\n<p class=\"wp-block-paragraph\">In this post, we learned how to quickly fix the CWP 502 bad gateway error. Feel free to use the process outlined here to resolve the issue yourself.\u00a0<\/p>\r\n\r\n\r\n\r\n<p class=\"wp-block-paragraph\">You can also contact <a href=\"https:\/\/da-manager.com\/contact-us\/\">our support<\/a> team for assistance if you face any difficulty or are not technically inclined.<\/p>\r\n","protected":false},"excerpt":{"rendered":"<p>No one likes to see error messages on their screen. In most cases, it creates&#8230;<\/p>\n","protected":false},"author":9,"featured_media":14335,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_lmt_disableupdate":"no","_lmt_disable":"no","_mbp_gutenberg_autopost":true,"footnotes":""},"categories":[288,147,219,128],"tags":[188,111,272],"class_list":["post-14261","post","type-post","status-publish","format-standard","has-post-thumbnail","category-web-hosting","category-general","category-hosting","category-web-designs","tag-content-marketing","tag-web-design","tag-web-hosting"],"modified_by":"Wise","_links":{"self":[{"href":"https:\/\/da-manager.com\/blog\/wp-json\/wp\/v2\/posts\/14261","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/da-manager.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/da-manager.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/da-manager.com\/blog\/wp-json\/wp\/v2\/users\/9"}],"replies":[{"embeddable":true,"href":"https:\/\/da-manager.com\/blog\/wp-json\/wp\/v2\/comments?post=14261"}],"version-history":[{"count":2,"href":"https:\/\/da-manager.com\/blog\/wp-json\/wp\/v2\/posts\/14261\/revisions"}],"predecessor-version":[{"id":15401,"href":"https:\/\/da-manager.com\/blog\/wp-json\/wp\/v2\/posts\/14261\/revisions\/15401"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/da-manager.com\/blog\/wp-json\/wp\/v2\/media\/14335"}],"wp:attachment":[{"href":"https:\/\/da-manager.com\/blog\/wp-json\/wp\/v2\/media?parent=14261"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/da-manager.com\/blog\/wp-json\/wp\/v2\/categories?post=14261"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/da-manager.com\/blog\/wp-json\/wp\/v2\/tags?post=14261"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}