Title: Failed to reset cache
Last modified: April 29, 2022

---

# Failed to reset cache

 *  [wrip](https://wordpress.org/support/users/wrip/)
 * (@wrip)
 * [4 years ago](https://wordpress.org/support/topic/failed-to-reset-cache/)
 * I have received “WordPress Updates Digest” notification email from cPanel stating
   that it “Failed to reset cache” on 3 different WP sites. The websites along with
   the plugins were manually updated yesterday. So, there was nothing else to update.
   The websites were functioning fine when I viewed them immediately after receiving
   this notification.
 * This is how the memory limit configuration looks like on the websites:
    staging.
   mysite1.com/site1 – 128MB (PHP 8) mysite1.com – 32MB (PHP 8) staging2.mysite2.
   com/site2 – 512MB (PHP 5.6)
 * The websites are simple informational sites and don’t have too much traffic. 
   The 2 staging sites I mentioned above don’t get any external traffic and are 
   not currently in use.
 * I’ve got this email twice this month. Not sure what’s triggering this issue and
   how to fix this.
 * This is what the full email looked like:
 * >     ```
   >     Updates were not installed for the following items:
   > 
   >     1. Website "/home/staging/public_html/site1" (http://staging.mysite1.com/site1):
   >     Failed to reset cache for the instance #1: Warning: mysqli_real_connect():
   >     (HY000/2002):
   >     Connection refused in /home/staging/public_html/site1/wp-includes/wp-db.php on line 1753
   >     Error: <code>Connection refused</code>
   >     Error establishing a database connection
   >     This either means that the username and password information in your <code>wp-config.php</code>
   >     file is incorrect or we can’t contact the database server at <code>localhost:3306</code>.
   >     This could mean your host's database server is down.
   >     Are you sure you have the correct username and password?
   >     Are you sure you have typed the correct hostname?
   >     Are you sure the database server is running?
   >     If you're unsure what these terms mean you should probably contact your host.
   >     If you still need help you can always visit the WordPress Support Forums. <code>Connection refused</code>
   > 
   >     2. Website "/home/mysite/public_html" (http://mysite1.com):
   >     Failed to reset cache for the instance #2:
   >     Error: Error establishing a database connection.
   > 
   >     3. Website "/home/staging2/public_html/site2" (http://staging2.mysite2.com/site2): 
   >     Failed to reset cache for the instance #3:
   >     Error: Error establishing a database connection.
   >     This either means that the username and password information in
   >     your <code>wp-config.php</code> file is incorrect or we can't contact the database server at <code>localhost</code>.
   >     This could mean your host’s database server is down.
   >     ```
   > 
    -  This topic was modified 4 years ago by [wrip](https://wordpress.org/support/users/wrip/).

Viewing 2 replies - 1 through 2 (of 2 total)

 *  Moderator [threadi](https://wordpress.org/support/users/threadi/)
 * (@threadi)
 * [4 years ago](https://wordpress.org/support/topic/failed-to-reset-cache/#post-15604345)
 * Have you already checked the things mentioned in the message? It says the database
   server could not be reached. Is the database otherwise always accessible? Maybe
   it was a dropout at the moment of access. You should clarify this with your hoster.
 *  Thread Starter [wrip](https://wordpress.org/support/users/wrip/)
 * (@wrip)
 * [4 years ago](https://wordpress.org/support/topic/failed-to-reset-cache/#post-15618127)
 * [@threadi](https://wordpress.org/support/users/threadi/) Yes the database is 
   always accessible. Yes, maybe it was a dropout at that very moment. When the 
   database is inaccessible, I usually get cPanel notification saying that MySQL
   is down or something similar but I never received this notification. So, I was
   a bit unsure what might have happened. I will wait and see if I get another message.

Viewing 2 replies - 1 through 2 (of 2 total)

The topic ‘Failed to reset cache’ is closed to new replies.

 * In: [Fixing WordPress](https://wordpress.org/support/forum/how-to-and-troubleshooting/)
 * 2 replies
 * 2 participants
 * Last reply from: [wrip](https://wordpress.org/support/users/wrip/)
 * Last activity: [4 years ago](https://wordpress.org/support/topic/failed-to-reset-cache/#post-15618127)
 * Status: not resolved

## Topics

### Topics with no replies

### Non-support topics

### Resolved topics

### Unresolved topics

### All topics