DX80 registration to the CUCM 8.6 version fail

[CSCO12422661]

I have a DX80 endpoint  and I want to registration it to the CUCM ,the CUCM version is 8.6. After I manualy configure the phone type of DX80 , the

DX80 cannot registartion to the CUCM. I have already upgrade the firmware of DX80 on the CUCM and restart the TFTP service on the CUCM.

On the DX80 "About device" panel, when I check the Status message, I found that " HTTP No Error:SEP1C6A7AE12820.cnf.xml". 

I cannot determine where is wrong with the message.

[Jonathan Robb]

Hi,

Are there any other DX80 that have been successfully registered to this cluster before?  If not, one of the most common reasons for this symptom is not restarting the CUCM after installing a device pack which is required for registration to be successful.  I would advise verify this if a device pack was installed.

-Jonathan