Title: Connection issues
Last modified: October 9, 2025

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# Connection issues

 *  Resolved [Richard B](https://wordpress.org/support/users/richard-b/)
 * (@richard-b)
 * [8 months ago](https://wordpress.org/support/topic/connection-issues-9/)
 * When pasting the code from CC we get a back screen with ‘unable to send to backend’,
   we also get the ‘DISABLE_WP_CRON’ warning however we are using the alternative
   cron method supplied by our hosting.
   No errors in our error log…

Viewing 7 replies - 1 through 7 (of 7 total)

 *  Plugin Contributor [Michael Beckwith](https://wordpress.org/support/users/tw2113/)
 * (@tw2113)
 * The BenchPresser
 * [8 months ago](https://wordpress.org/support/topic/connection-issues-9/#post-18674852)
 * Hmm. Not familiar with this `unable to send to backend` error as that’s not one
   provided by our plugin, and I’m not managing to find that message string in WordPress
   core.
 * I definitely know we have some checks around `WP_CRON` being available, and I
   believe the admin notification should be dismissable, though I could see why 
   it’d potentially not be too.
 * That said, I also know we have this snippet of code as part of the API integration
   to try and help make sure access tokens are still getting refreshed:
 *     ```wp-block-code
       if ( defined( 'DISABLE_WP_CRON' ) && DISABLE_WP_CRON ) {	if ( $this->access_token_maybe_expired() ) {		$this->refresh_token();	}}
       ```
   
 * It just happens to potentially run a bit more frequently because of `WP_CRON`
   being disabled.
 *  Thread Starter [Richard B](https://wordpress.org/support/users/richard-b/)
 * (@richard-b)
 * [8 months ago](https://wordpress.org/support/topic/connection-issues-9/#post-18676259)
 * Ok thank you for letting me know. The plugin does appear to connect but we get
   constant emails with the following error:
   “Potentially a failed signup has been
   detected and will be retried automatically once a new connection has been established.
   Otherwise, issues with token refreshing have been detected. Please visit your
   site and perform the steps to reconnect the plugin at your earliest convenience.”
 *  Plugin Contributor [Michael Beckwith](https://wordpress.org/support/users/tw2113/)
 * (@tw2113)
 * The BenchPresser
 * [8 months ago](https://wordpress.org/support/topic/connection-issues-9/#post-18676281)
 * Can you visit our Settings > Support tab, and toggle on the debug logs checkbox?
   This will add in some extra logging and reveal a hidden menu that gives access
   to the logs. Would love to see if things are actually failing, or if there’s 
   potentially just some excess admin notifications coming through.
 * We’d be able to better determine if API credentials are actually renewing themselves
   as needed.
 *  Thread Starter [Richard B](https://wordpress.org/support/users/richard-b/)
 * (@richard-b)
 * [8 months ago](https://wordpress.org/support/topic/connection-issues-9/#post-18676328)
 * Thanks so much, ok straight away I can see:
   [2025-10-08T13:41:47.985764+00:00]
   API.INFO: ConstantContact_API::get_lists:420 unauthorized: Unauthorized [] []
   In the logs…
 *  Plugin Contributor [Michael Beckwith](https://wordpress.org/support/users/tw2113/)
 * (@tw2113)
 * The BenchPresser
 * [8 months ago](https://wordpress.org/support/topic/connection-issues-9/#post-18676451)
 * If you’d prefer to share all the logs privately, they can be sent to [wordpresssupport@constantcontact.com](https://wordpress.org/support/topic/connection-issues-9/wordpresssupport@constantcontact.com?output_format=md)
   and they should make their way to us to further review.
 *  Thread Starter [Richard B](https://wordpress.org/support/users/richard-b/)
 * (@richard-b)
 * [7 months, 3 weeks ago](https://wordpress.org/support/topic/connection-issues-9/#post-18689511)
 * Thank you Michael, have sent the full log.
 *  Plugin Contributor [Michael Beckwith](https://wordpress.org/support/users/tw2113/)
 * (@tw2113)
 * The BenchPresser
 * [7 months, 3 weeks ago](https://wordpress.org/support/topic/connection-issues-9/#post-18689548)
 * Confirmed receiving and will review as soon as able and get back to you.

Viewing 7 replies - 1 through 7 (of 7 total)

The topic ‘Connection issues’ is closed to new replies.

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## Tags

 * [disconnect](https://wordpress.org/support/topic-tag/disconnect/)

 * 7 replies
 * 2 participants
 * Last reply from: [Michael Beckwith](https://wordpress.org/support/users/tw2113/)
 * Last activity: [7 months, 3 weeks ago](https://wordpress.org/support/topic/connection-issues-9/#post-18689548)
 * Status: resolved