title: Web Socket is not working for actual device after upgrading server from 2012 to 2019
body: <p>We have a backend application that can connect from mobile and an actual IOT based Device. We used Web Socket with WCF as a structure. As before somedays, Azure stops to support TLS10, we need to upgrade the Notification library forcefully. For that we upgraded to .NET framework 4.8 and all libraries upgraded.</p>
  <p>Currently, we have a dev environment without an SSL certificate, and a staging environment with SSL enabled.
  We deploy code in both servers, but in the Dev server, it's working fine,</p>
  <p>In the staging server, Hard devices (not mobile) are not connecting via Web Socket.
  Can anyone help? Thanks in advance.</p>