Error message for a couple of months

Hi @ktaylor310,

I suppose you are referring to the following doc you went through?
https://wpmudev.com/docs/wpmu-dev-plugins/smush/#loopback-request-issue

Could you please confirm whether you checked by disabling all the plugins except Smush and with a default WP theme to see if you get the same issue or not?

If the issue is still the same even after the above, then could you also check under Tools > Site Health in your WP dashboard whether there are any loopback errors reported?

If there are loopback errors reported under the Site Health page, it would mean WP in general is picking an issue with a loopback error and it is more specific within the Hosting side.

So if the above is the case, we would also recommend checking with the hosting provider too as the error won’t be just specific to smush.

Please do let us know how that goes, so that we could check further if needed.

Kind Regards,

Nithin

Hi, sorry for the delay but I was too busy to do the testing until now. I am still getting the error with all plugins except Smush deactivated, also when switching to 2024 theme. There are no errors under site health, just a warning that they could not find a page cache plugin. I use server side Redis caching. Also no errors in the Nginx error log. It also did not help to disable wpFail2Ban.

WP Debug only shows deprecation warnings:
[12-Nov-2024 17:42:43 UTC] PHP Deprecated: Hook wp_smush_should_skip_parse is <strong>deprecated</strong> since version 3.16.1! Use wp_smush_should_skip_lazy_load instead. in /var/www/winkpanels.com/htdocs/wp-includes/functions.php on line 6085

Console error:
media-library-scanner.js:38 Error: {success: false}
(anonymous) @ media-library-scanner.js:38
Promise.catch
value @ media-library-scanner.js:37
value @ media-library-scanner-on-bulk-smush.js:39
(anonymous) @ media-library-scanner-on-bulk-smush.js:395

Hi @ktaylor310 ,

I hope you’re doing well.

I’m sorry for asking this but could you confirm that you did wait a few minutes on Site Health to check the results? Sometimes it takes a few minutes to show the complete results, it should show a message other than “Results are still loading” to confirm that it finished the checks.

If you did, could you please reach your Hosting Support so they can confirm that nothing is blocking or limiting the Loopback Requests? Sometimes the server or a firewall could block loopback requests.

You can check the IPs to whitelist for Smush to work properly here – https://wpmudev.com/docs/getting-started/wpmu-dev-ip-addresses/

CloudFlare could also block loopback requests at some point, would recommend checking it in case you’re using it and trying to whitelist our IPs there as well.

Please let us know if it helps.

Best regards,
Williams Valerio

I think I found it. I disabled WAF7 and it is working now. Thank you for all of your help.

Kimi