FIND YOUR CA (CERTIFICATE AUTHORITY) SERVER IN YOUR ACTIVE DIRECTORY ENVIRONMENT

This utility tool able to identify CA server in AD environment.

certutil –config - -ping

Thanks to David Rowe for this article.

http://blogs.catapultsystems.com/drowe/archive/2012/11/15/how-to-find-a-certificate-authority-in-your-active-directory-environment.aspx

THE WINRM CLIENT RECEIVED AN HTTP STATUS CODE OF 502 FROM THE REMOTE WS-MANAGEMENT SERVICE.

Found error when open the Exchange Management Shell on exchange 2013.

Connecting to remote server failed with the following error message : The WinRM client received an HTTP status code of 502 from the remote WS-Management service.

Solution: 
Open command prompt and run the command below;

netsh winhttp reset proxy

https://technet.microsoft.com/en-us/library/bb430772(v=exchg.141).aspx