You're welcome,
Deploy AD to Linux, is used to make Linux machine to join Windows Domain and get the Windows User's information, maybe has a little similar as LDAP or NIS service.
You said you can not access it through the Network Browser GUI, I suggest you check the network status of AD(ping the AD server), and ensure the samba service is running on your RedHat Linux box,
If smb is not running, start it and try to access AD again.
Regards,
phillip