You appear to be correct. This is from the MS log (below). Discovery timed out.
I'm not sure why this would be. My network settings shouldn't have changed since the last time I tried this. I am able to ping the KVM host from the MS host and vice versa. I'm even able to manually kick off a VM on the KVM host and ping from it to the MS host. I am using NAT from my Mac OS X host (also running the CS MS) to the VM running KVM (VMware Fusion). 2013-09-20 19:40:40,141 DEBUG [c.c.h.k.d.LibvirtServerDiscoverer] (613487991@qtp-1659933291-3:ctx-6b28dc48) Timeout, to wait for the host connecting to mgt svr, assuming it is failed 2013-09-20 19:40:40,144 WARN [c.c.r.ResourceManagerImpl] (613487991@qtp-1659933291-3:ctx-6b28dc48) Unable to find the server resources at http://192.168.233.10 2013-09-20 19:40:40,145 INFO [c.c.u.e.CSExceptionErrorCode] (613487991@qtp-1659933291-3:ctx-6b28dc48) Could not find exception: com.cloud.exception.DiscoveryException in error code list for exceptions 2013-09-20 19:40:40,147 WARN [o.a.c.a.c.a.h.AddHostCmd] (613487991@qtp-1659933291-3:ctx-6b28dc48) Exception: com.cloud.exception.DiscoveryException: Unable to add the host at com.cloud.resource.ResourceManagerImpl.discoverHostsFull(ResourceManagerImpl.java:778) I do seem to be able to telnet in from my KVM host to the MS host's 8250 port: mtutkowski@ubuntu:~$ telnet 192.168.233.1 8250 Trying 192.168.233.1... Connected to 192.168.233.1. Escape character is '^]'.