Title: Error 503
Last modified: May 26, 2020

---

# Error 503

 *  Resolved [eyeswiseopen](https://wordpress.org/support/users/eyeswiseopen/)
 * (@eyeswiseopen)
 * [6 years ago](https://wordpress.org/support/topic/error-503-20/)
 * Hi there
    I started having a problem connecting new sites to mailchimp getting
   the Error connecting to Mailchimp: 503 Service Unavailable I followed through
   to your site and read the explanations you provide curl is the latest version
   so I thought well it must be the IP address so I changed the ip address to a 
   new one today, but I am still having the same issue
 * any ideas what could be the real reason?
    look forward to hearing your thoughts
 * The page I need help with: _[[log in](https://login.wordpress.org/?redirect_to=https%3A%2F%2Fwordpress.org%2Fsupport%2Ftopic%2Ferror-503-20%2F%3Foutput_format%3Dmd&locale=en_US)
   to see the link]_

Viewing 1 replies (of 1 total)

 *  Plugin Contributor [Lap](https://wordpress.org/support/users/lapzor/)
 * (@lapzor)
 * [6 years ago](https://wordpress.org/support/topic/error-503-20/#post-12892223)
 * How did you change your IP address? You asked your hosting provider for a dedicated
   hosting ip?
 * It’s very common that once you get a dedicated IP for your hosting package, that
   the hosting provider only sets this IP for inbound connections, and is still 
   using a shared IP for outbound connection. You can ask your hosting support to
   setup the outbound routing so that cURL calls made by Apache/PHP are routed over
   your own dedicated IP.
    It can take a few levels/tiers of support before you 
   get someone who is actually “in the know” about this sort of thing with your 
   hosting provider as network routing is a complicated and specialized topic.
 * Hope that helps. If you have any questions, please let me know!

Viewing 1 replies (of 1 total)

The topic ‘Error 503’ is closed to new replies.

 * ![](https://ps.w.org/mailchimp-for-wp/assets/icon-256x256.png?rev=1224577)
 * [MC4WP: Mailchimp for WordPress](https://wordpress.org/plugins/mailchimp-for-wp/)
 * [Frequently Asked Questions](https://wordpress.org/plugins/mailchimp-for-wp/#faq)
 * [Support Threads](https://wordpress.org/support/plugin/mailchimp-for-wp/)
 * [Active Topics](https://wordpress.org/support/plugin/mailchimp-for-wp/active/)
 * [Unresolved Topics](https://wordpress.org/support/plugin/mailchimp-for-wp/unresolved/)
 * [Reviews](https://wordpress.org/support/plugin/mailchimp-for-wp/reviews/)

 * 1 reply
 * 2 participants
 * Last reply from: [Lap](https://wordpress.org/support/users/lapzor/)
 * Last activity: [6 years ago](https://wordpress.org/support/topic/error-503-20/#post-12892223)
 * Status: resolved