I have solution for EPS console open problem like as certificate issue.
There are following steps for resolve this problem.
Note: Please perform this operation in your server that installed EPS console and login in Administrator.
Solution-1:
Step-1: Download TLS 1.2(Enabled) from below link as per below image.
Download : Click Here
Step-2: Extract this file as per below image.
Step-3: Open this folder as per image.
Download: Click Here
Step-2: Right Click on that exe and run run as administrator as per below image.
Step-3: When run this exe you can see one window.
Step-4: Click on "Best Practices" button as per below.
Step-5: Click on Ok button as per below image.
Step-7: Click on Apply button.
Step-8: Restart your server and check client side.
Step-9: If above all steps done and not resolve this problem, you can use Firefox.
Note: If You will want to more information, Please mail me on "info@itsolution4u.in