Unable to install SCCM client

If you get error 5 or 53 the problem is probably related to the account you set to push the clients, a problem with your management point, the client is offline or you have a DNS problem.

If you get "unable to connect to WMI (root\ccm) on remote machine" the problem is probably your firewall.

Disable the firewall or type in a command prompt with elevated privileges:

netsh firewall ser service remoteadmin enable