Dashboard shows “Failed to fetch”

Hi @ojobson

I hope you’re well today!

Please note: don’t post links to admin/back-end pages – we can’t see/access them anyway and.

Does the error says only “Failed to fetch” or there’s some more information (like “Failed to fetch” followed by some file or resource name or some error code)?

Is there any server-side cache active and/or any additional asset optimization tools (e.g. other plugin or some server-side tool or additional 3rd-party CDN)?

Let us know, please.

Kind regards,
Adam

Hi @ojobson

Thank you for the screenshot.

You can use Google Drive to share extra screenshots as we can’t embed them on this forum.

We will need to run some tests to find why it is happening since this is a generic issue.

Could you please please run those tests:

– Make sure the WPMU DEV IPs are allowed on your firewall:
https://wpmudev.com/docs/getting-started/wpmu-dev-ip-addresses/

– “I believe I have Memcached running”, go to Hummingbird > Caching > enable the Varnish & OpCache ( if it is enabled ) https://wpmudev.com/docs/wpmu-dev-plugins/hummingbird/#page-cache-integrations clear all caches and check if issueis gone.

– Check the WordPress memory Limit: https://wpmudev.com/blog/increase-memory-limit/

Let us know the result you got.
Best Regards
Patrick Freitas

Hi @ojobson

You can use the Hummingbird > Settings > Data > Remove all data in uninstallation.

I also suspect that the cache isn’t working properly either as there are only ever between 1 and 3 cache files and the number keeps resetting back to 1.

Can you try this script as a mu-plugin to see if makes any difference?

add_action( 'delete_transient_wphb-processing', function(){
remove_all_actions( 'wphb_clear_page_cache', 10 );
} );

https://wpmudev.com/docs/using-wordpress/installing-wordpress-plugins/#installing-mu-plugins

In case the issue persists, I suggest running a Full plugin & theme conflict test following this workflow:

https://wpmudev.com/wp-content/uploads/2015/09/Support-Process-Support-Process.gif

Let us know the result you got.
Best Regards
Patrick Freitas