Group Series 500 Registration Failed to Call Manager 11.0

[Anonymous]

RealPresence Group Series500 

Hardware Version: 9

System Software: Release - 4.1.5-180072

Software Version: 1.88

Call Manager:  11.0.1.22900-14

I am currently trying to register my GS500 to my Cisco Call Manager. I followed the steps on this section "Register a Polycom RealPresence Immersive, Room, or
Desktop System with Cisco Unified CM " from this guide (https://support.polycom.com/global/documents/support/strategic_partner_solutions/Cisco_Solution_Depl...).

Currently from the Call Manager perspective, the device is currently not registered with an unknown status. 

From the Polycom perspective it says "Registration Failed". 

I am able to ping from and to my Call Manager. Any ideas on what i am missing? I have followed the steps on the guide and verified that I completed each step. 

Thank you in advance,

B

[Anonymous]

Attached are the logs if this helps.