[Users] Host stuck in unresponsive state

[Frank Wall]

Hi,

my all-in-one host is stuck in unresponsive state, no matter what I try. 
Found this error in my engine.log:

2013-08-31 23:53:59,325 ERROR 
[org.ovirt.engine.core.vdsbroker.vdsbroker.GetCapabilitiesVDSCommand] 
(DefaultQuartzScheduler_Worker-54) Command GetCapabilitiesVDS execution 
failed. Exception: VDSNetworkException: java.net.ConnectException: 
Connection refused

This message starts to appear when I try to activate the host (from 
maintenance state).

Any idea how to activate the host?

Running oVirt 3.3 RC2 on Fedora 19, all-in-one Setup.


Thanks
- Frank