Loopback and other errors on site

I have just set up a new site with the same theme (themeco pro) and plugins as I have used before and I am getting numerous errors in the wordpress site health tool.

These are the recurring issues:

“Your site could not complete a loopback request
The loopback request to your site failed, this means features relying on them are not currently working as expected.
Error: cURL error 28: Operation timed out after 10001 milliseconds with 0 bytes received (http_request_failed)”

“An error occurred while checking whether your site can be found by search engines
Ryte offers a free indexability check for Yoast SEO users. The request to Ryte to check whether your site can be found by search engines failed due to an error.
Error details: cURL error 28: Operation timed out after 5001 milliseconds with 0 bytes received (http_request_failed)”

“Background updates may not be working properly
Security
Background updates ensure that WordPress can auto-update if a security update is released for the version you are currently using.
Warning: Could not confirm that the wp_version_check() filter is available.
Passed: No version control systems were detected.
Passed: Your installation of WordPress doesn’t require FTP credentials to perform updates.
Passed: All of your WordPress files are writable.”

I have tried disabling plugins and themes but these errors seem to just pop up sporadically so I can’t figure out where the issues are coming from or which are related issues – if any are related.

I have spoken to my hosting and they have said they can’t find anything wrong or that it is not a server issue.
I have also updated PHP version and increased memory limit in php.ini file.

I’m still fairly beginner and not sure where to go next. Please help!

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