Cloudflare and API checks in Admin issue

We use Cloudflare with Opencart 2.0 to speed up things and it works great.
However we've got an issue with admin, when login it checks the IP address( API Check) and once you put the right IP, it then changes the IP again so you constantly need to use a different IP address inside the API Allowed list.

I know you can disable API checks but that allows employees to use the site from computers that are not within the business.
Does anyone have a solution here?

Thanks

I am having the same problem using comodo cdn so apparently it is an issue with using a cdn with opencart.