I have 5 total servers in my Zimbra install. On one of them, one of the MTA servers, I am getting the following error when trying to run zmprov commands:

ERROR: zclient.IO_ERROR (invoke Connection refused, server: localhost) (cause: java.net.ConnectException Connection refused)

I found posts related to Cert errors, but this doesn't seem to be a cert error. I stumbled upon it when I was trying to diagnose why this server wasn't being reported in the stats on the logger server. It seems to be processing email ok and delivering things properly, but apparently it is having trouble talking to the LDAP? Can someone direct me to the problem and its resolution? I assume fixing this will also fix the logger issue with this server? This seemed to happen after my latest upgrade to 5.0.7 a few weeks ago.