I've a Cisco 7800 series with CallManager 3.3 and I wanna upgrade it to CM 4.0.
But it give error when upgrading.
I cannot uninstall the CM3.3, or install the CM4.0 or upgrade the CM3.3 to CM4.0 too.
For the uninstall of the CM3.3, the button "change/remove" is disabled".
And for the upgrade, it display these errors:
1 - ReConnectRegistryA: Error: 53: The network path was not found
2 - Failure occured trying to get DBNAME value from registry. Aborting Cisco Call Manager installation.
The SQL Server is started.
The network connection is OK.
Cany you help me.
What is the exact CCM 3.3 version? Is it 3.3(5)?