SCCM client status show no in console

Recently I had bit difficulty and strange issue in my lab while installing SCCM client on the servers.

The issue was, client install status showing No in SCCM console and only two actions available on the client side.

No error messages on any of the logs

On the client properties, a self signed certificate is installed and MP is assigned;

All the components are installed, but not enabled or disabled;

Only two actions are available under actions tab; 

Site assignment is working as expected;

All Management Point's are working fine.

The problem exists only few servers and all the other servers are working fine.

Eventually, figured out that the firewall was disabled on these servers using GPO for some other testing.

Enabled the firewall service and everything started working.