Imagify getting time out error

Hi,
I am facing issue on imagify when doing image optimization.
below is error
“cURL error 28: Connection timed out after 10000 milliseconds”

I have followed all steps as mention in “https://docs.presscustomizr.com/article/326-how-to-fix-a-curl-error-28-connection-timed-out-in-wordpress”

Previously I was facing same issue on plugin installation because my network has firewall security. I have enabled for it. Now I am facing this issue on optimizing image.

Please help me here to fix it.

Thank You