With over a decade of experience in network administration and system administration, I believe I am the ideal candidate to resolve your NTP service configuration issue on your Windows Server 2016 domain controller. Not only do I have a demonstrated proficiency with wingate proxy servers, but I have also gotten my hands dirty troubleshooting various network traffic issues.
My knowledge of custom routing configurations and security restrictions will prove instrumental in overcoming any obstacles present. Your requirement for proven experience with Windows Server 2016 is one that works in my favor as I am well acquainted with the OS and have conducted countless successful installations and configurations on it.
Additionally, the fact that I've worked with a plethora of vendors, including Microsoft and Cisco fortifies my ability to implement best practices and come up with unique solutions tailored to specific situations. Trust me to execute this task diligently, leveraging my skills in routing, switching, VPNs and system administration - rest assured, we will resolve this issue efficiently and effectively.