When I tried to connect the new 7961G to CUCM, it started to download the firmware SCCP41.9-0-2SR1S to 7961G however it show "Auth Fail" on the screen and the download stopped. I have checked the release notes before and think that maybe I need to upgrade it to SCCP41.8-5-2SR1S first before upgrade to SCCP41.9-0-2SR1S. However it also show "Auth Fail" when I tried to load the SCCP41.8-5-2SR1S in it. And the current 7961G version should be SCCP.8-2-0-55. What should I do next?
