decryption failed while reading the registry secret-Collection of common programming errors

I guess i didn’t read the fine print on msdn (http://msdn.microsoft.com/en-us/library/aa544806(CS.70).aspx)

Note:

You must use the same encryption keys that you create in step 1 on all the servers.

You must perform steps 2 and 3 on each server. You cannot follow these steps only one time and copy the resulting files to the other servers.