I upgraded one of my lab hosts to ESXi 4.1 yesterday and was plagued with this error:
![vmodl.fault.hostcommunication System Error: vmodl.fault.hostcommunication](https://thephuck.com/wp-content/uploads/2010/08/vmodl.fault_.hostcommunication.jpg)
A lot of people are getting this error without a lot of direction. As it turns out, this is because I upgraded one of my hosts to 4.1 without upgrading vCenter to 4.1. Silly me! Who would have thought that vSphere vCenter couldn’t manage a vSphere host because it’s rev is 0.1 higher?
i had the same problem.
uninstall vpxa using “rpm -e VMware-vpxa” and then re-adding the server in vCenter helped!
Thanks for the info! I’m using ESXi, so no rpm…