Support » Plugin: Jetpack - WP Security, Backup, Speed, & Growth » Jetpack Dashboard unable to properly communicate with the server

  • Resolved doywil



    I noticed the error 6 to 7 hours ago. I have checked for plugin conflict and theme issues. It isn’t that. Checked debug tool, XML RPC validation service and done the Everything seems fine. Even the silte health tool reports no errors.

    Interestingly, it is not persistent. Sometimes it happens, other times everything works fine.

    When I checked the site error log, it says fatal PHP Error.

    What could be the solution to this problem?

    • This topic was modified 1 month ago by doywil.

    The page I need help with: [log in to see the link]

Viewing 11 replies - 1 through 11 (of 11 total)
  • Plugin Author Jeremy Herve


    Jetpack Mechanic 🚀

    Interestingly, it is not persistent. Sometimes it happens, other times everything works fine.

    That’s odd indeed. This may not be related, but I should note that your site seems to be a bit slow at the moment; it was stuck on this loading screen for about a minute:

    Screenshot 2021 04 16 at 10 03 01

    When running tests trying to connect to your site via, I experienced some timeouts for 2 of my tests out of 3, so the overall issue may be that your site is not responding quick enough at times.

    Have you experienced the same type of slowness on your site lately?

    When I checked the site error log, it says fatal PHP Error.

    Could you share the exact error here? It may tell us more about what’s causing the problems on your site.

    Thread Starter doywil


    [15-Apr-2021 07:54:20 UTC] PHP Warning: call_user_func_array() expects parameter 1 to be a valid callback, array must have exactly two members in /home2/xxxxx/public_html/wp-includes/class-wp-hook.php on line 294

    [15-Apr-2021 07:54:21 UTC] PHP Fatal error: Class ‘Jetpack_SEO_Utils’ not found in /home2/xxxxx/public_html/wp-content/plugins/jetpack/json-endpoints/class.wpcom-json-api-get-site-endpoint.php on line 3

    [15-Apr-2021 10:55:33 UTC]PHP Fatal error: Class ‘Jetpack_SEO_Utils’ not found in /home2/xxxxx/public_html/wp-content/plugins/jetpack/json-endpoints/class.wpcom-json-api-get-site-endpoint.php on line 3

    Those are the errors, the two errors repeating over and over.

    Plugin Contributor Jen H.


    Hey @doywil,

    Thanks for those specifics. It looks like this is a recently discovered issue with the recent Jetpack update. I’ve logged your report on an existing issue in the Jetpack GitHub repo:

    For the most up-to-date news on the issue, please use the Subscribe button in the right sidebar on GitHub to sign up for updates.

    • This reply was modified 1 month ago by Jen H..
    Thread Starter doywil


    Hi @jenhooks,
    Thank you, I thought it is because the site is slow. Hopefully this will be fixed in the updates.

    @jeherve, thanks for letting me know that my site’s slow loading.

    • This reply was modified 1 month ago by doywil.
    Plugin Contributor Dan


    Hi @doywil

    As mentioned on the Github issue, the error should not actually have any effect on your site, so this may be unrelated to the Jetpack connection issue, which is actually more likely due to the load speed issue that Jeremy mentioned earlier.

    You can use a tool like to get a speed report and suggestions for improving the loading speed. Your host may also be able to help with that.

    Please let us know if the issue persists once you’ve taken some measures to improve the site’s performance.

    Thread Starter doywil



    Technology and coding is beyond my grasp.

    The last two days, I was googling how to speed up website. Implemented some stuff, like CDN, changed caching plugin and stuff. Deleted some pluguns I no longer use or need. There is a bit of improvement. None of them help because my server is slow.

    Here is a screenshot of the error.

    Plugin Support bruceallen


    Happiness Engineer

    Hi @doywil

    At this point, you may want to consider contacting your host to either get you moved to an upgraded server, or changing hosts altogether. No matter how much you optimize your site, if your server is underpowered, there are going to be issues.

    Thread Starter doywil


    I have planned to upgrade server. The hosting company will do the migration. I will update the thread after the move.

    Keeping my fingers crossed that it will work out. Hope this issue will be gone once server is upgraded. As I’m not able to update settings, they’re not getting saved.

    Plugin Contributor Stef


    Keep us posted on that, @doywil, in case you need us to run more tests on your Jetpack site 🙂

    Plugin Support Animesh Gaurav


    Hi @doywil

    It has been more than one week since we have heard from you, so I’m marking this topic as resolved. But If you have any further questions or need some more help, you’re welcome to reply here or open another thread.


    Thread Starter doywil


    Thank you.

    I have upgraded my hosting plan to add more resources and the site is much faster. But I’m still not able to update settings because the changes are not getting saved.

    It is not caused by the fatal PHP error.

    • This reply was modified 2 weeks, 3 days ago by doywil.
Viewing 11 replies - 1 through 11 (of 11 total)
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