WP Smush It Pro "Request failed Site URL not accessible"

I have re-installed the WPMUDEV plugin & the WP Smush It Pro plugin on my wordpress website.
However when I click the "Send Smush Request" button I still get the message: "Request failed Site URL not accessible"
My API Key seems to be correct & connected.
I use http://www.shannonspetsitting.net/wp-login.php to login to my dashboard

  • Ash
    • WordPress Hacker

    Hello @Shannon

    Welcome to WPMU community!

    I hope you are well today and thanks for asking the question.

    Are you using any security plugin? Like wordfence or something else?

    Would you please delete cache, disable caching plugin (if any) and check? And please try to whitelist our server IP 66.135.55.161 in your CDN, if you are using CDN.

    Let me know.

    Cheers
    Ash

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