Can't send request to samsung pay api

Hello. I am a developer of an IT company from Kazakhstan. We want to integrate Samsung Pay with our web project. Now we have a problem with passing the part 4.2.1. Firewall exception registration in Samsung_Pay_Web_Checkout_integration_guide. After adding our IPs inside Service details, we can’t send requests to Samsung Pay API development URL. There is no connection to the API and we recieve connection timeout. What can be wrong with our project settings?

Hello @zhuman.beknazar ,
I think you can get better help by contacting Samsung Pay Support from here.