Cisco phone 8832 not registering with Call Manage

[BigK]

I have a Cisco phone 8832 CUCM version 11.5.1.11900-26 the load file is sip8832.12-5-1-16.loads and the phone is not registering with Call Manager. It gets an IP address 10.X.X.X.  

There is also very weird ping behavior, When I ping the ip, I get dropped packet, possibly bad cable, I will have to check, all other none 8832 Ip-phones are fine. 

SW1#ping 10.X.X.X
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 10.X.X.X, timeout is 2 seconds:
!!...
Success rate is 40 percent (2/5), round-trip min/avg/max = 1/1/1 ms
SW1#ping 10.X.X.X
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 10.X.X.X, timeout is 2 seconds:
.!!.!
Success rate is 60 percent (3/5), round-trip min/avg/max = 1/1/1 ms
SW1#ping 10.X.X.X
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 10.X.X.X, timeout is 2 seconds:
..!!!
Success rate is 60 percent (3/5), round-trip min/avg/max = 1/1/1 ms

Device ID: SEP5CE1XYXYXY
Entry address(es):
IP address: 10.X.X.X
Platform: Cisco IP Phone 8832, Capabilities: Host Phone Two-port Mac Relay
Interface: TwoGigabitEthernet1/0/26, Port ID (outgoing port): Port 1
Holdtime : 177 sec

Version :
sip8832.12-5-1-16.loads

[Jaime Valencia]

Did you install the DevPack required for it?

[BigK]

@Jaime Valencia 

Thanks! No I did not. where that will be? how would I check if it is installed?

I checked the device default config on call manager, I can see a load info under Dual bank info but not under Device Defaults Information

[sudaggar]

Please check switch port configuration of working and non-working phone.

Connect the non-working phone to working phone port and check if it is able to register with CUCM.

Are you able to access webpage of non working phone via IP address on web browser. If yes, then please share console logs.

Regards