I need some advice on the following issue.
Cisco ATA is unable to register to CUCM and when checked on the switchport of the ATA, cdp information is also not available.
HTTPS access to the ATA had also failed. We had to reboot the ATA to restore registration and access. This is happening frequently and i was unable to locate any bug that could cause this issue.
Please do let me know on what could the problem be and please be noted that this is happening to multiple ATA's.
ATA: 191 (ATA191.12-0-1SR2-3)
I have rebooted the ATA and it re-registers.
The problem is after a few days it starts happening again.
I can see this happening to a fleet of device.