Blacktoe said:
I'm also having installation issues within my test environment with the following error: The user who's currently logged on doesn't have sufficient permissions to install this package. You need at least Exchange Server Administrator permissions on the current computer to complete this task.
I got the same problem and what I did to make it work was that I unchecked the “Check for publisher’s certificate revocation” and
“Check for server certificate revocation" and it worked.
Turn off the Check for publisher’s certificate revocation option on the server that is being upgraded. Follow these steps:
In Windows Internet Explorer –> Tools –> Internet Options –> Advanced tab
In the Security section, uncheck or clear the box for below tow options
“Check for publisher’s certificate revocation”
“Check for server certificate revocation