Service overview and network port requirements for Windows. 09/08/2020; 59 minutes to read; D; x; M; s; In this article. This article discusses the required network ports, protocols, and services that are used by Microsoft client and server operating systems, server-based programs, and their subcomponents in the Microsoft Windows Server system.
If the site can't guarantee safe encryption due to problems with the site's certificate, the site page won't open and you'll see in the SmartBox and a warning that a safe connection could not be established. In this case you can decide to either not visit the site, or add the certificate to your list of trusted ones.