We have CUCM 188.8.131.5200-18 and ATA 190 with Firmware ATA190.1-2-2-003.
When we try to upgrade a specific ATA 190 with Firmware ATA190.1-2-2-003_SR1-1 by placing it to the "Phone Load Name" the ATA upgrades as we see bellow in the Web Gui but it stops registering to CUCM.
In order to make it register again we need to remove the Phone Load Name and restart the ATA.
Why can't we register the ATA with the new Firmware??
Solved! Go to Solution.
Do the firmware files exist on all your servers (at least the TFTP servers) and have you restarted the TFTP service on all servers after applying it?
The firmware is uploaded in all the servers and all the TFTPs are restarted.
As it seems in the picture the ATA takes the new firmware but it does not register to CUCM.