How to Fix WordPress Updating Failed / Publishing Failed Error

Are you trying to fix the WordPress updating failed or publishing failed error on your website?
Sometimes when editing a post or page, you may see the updating failed or publishing failed error. This error does not give any clues, which makes it particularly difficult for beginners.
In this article, we’ll show you how to easily fix the WordPress updating failed error. We’ll also explain what causes this issue, and how to avoid this in the future.

What Causes Updating Failed or Publishing Failed Error in WordPress?

Failure to communicate with the WordPress REST API causes the ‘Updating Failed’ or ‘Publishing Failed’ error in WordPress.

Basically, WordPress sometimes uses a set of APIs (programming methods) called ‘REST API’ to send and receive requests to the WordPress database.

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If it fails to send and receive those requests, then some parts of your WordPress website may not be able to function. This includes the WordPress block editor, which uses the API to send update and publish requests to WordPress.

Why WordPress is Unable to use REST API?

Now you might be wondering, that if I didn’t make any changes to my website, then why did the REST API stop working on its own?
There are a number of scenarios that may prevent WordPress from using the REST API. For example, you may not be connected to the internet or have lost connectivity.

Other reasons may be a little more complicated. For instance, you may have accidentally changed the site URL, a WordPress plugin may be causing the issue, or a third-party service may be blocking the API calls.
That being said, let’s take a look at how to troubleshoot and fix the WordPress updating failed error.

Step 1. Check Your Internet Connection and Site URL

The most common cause for updating failed error in WordPress is losing the WiFi connection. If your computer loses the internet connection as you are writing a blog post, then WordPress will fail to save your changes.
Make sure you are connected to the internet by visiting other websites in a new browser tab.
If your internet is working fine, then the next thing you would want to check is your WordPress site URL setting.
Simply go to the **Settings » General** page and make sure that the Site Address and WordPress Address options are correct. For most websites, you should have the same URLs in both fields.
If your site URL settings look ok, and you are connected to the internet, then you can move on to further troubleshoot.

Step 2. Check REST API Status Using WordPress Site Health

WordPress comes with a built-in site health tool, which shows important information about your site’s security and performance.
Simply go to the **Tools » Site Health** page to view the report. If REST API is not working, then you will see it under recommended improvements as *‘The REST API encountered an unexpected result’*.

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