To solve this issue you need to define the FTP details in your wp-config.php file so WordPress will remember it. Alternatively, you may also provide WordPress with write access to your /wp-content folder by accessing the FTP root file and changing the folder file permission (CHMOD) to 775 rather than the default 755 and 644.
There is however an easier way to deal with this; by defining constant, FS_METHOD in your wp-config.php file. This bypasses WordPress’s recurring prompts, and allows auto-updates of your files to happen. And it takes only 1 line of code to do this.
Step 1. Open /Wp-Config.Php
Now the first thing you need to do is to open the wp-config.php file from your WordPress root folder (you may access this file from your WordPress installer folder). From the installation folder, the file is located at wordpress/wp-config.php
Step 2. Insert FS_METHOD
Paste the following code to your wp-config.php file, preferably just below every other line of code.
define(‘FS_METHOD’,’direct’);
Step 3. Save And Upload
When you have already pasted the one-line code, you can proceed to upload the file to your WordPress root folder on your server, and it should work right away. Uploading can be done directly from your host control panel.