Create package to deploy on pc and autologon

I created 2 packages: one to deploy application via GPO and one to manual install on stand-alone pc.

In both cases, after the package it installed, it doesn't log to the network then I must log-in to computer and manually insert user/psw to log to my network.

Is possible to automate this procedure so, after the installation, the computer will automatically go on-line and I find it in the control panel?

Tks

S