[libvirt-users] Error in libvirt-GUI

Hi, I am using libvirt --> 0.10.2  and virt-manager --> 0.9.0 version (RHEL 6). Very rare I get following error message dialogue box. (Image is attached for the error dialogue box ) Error saysError polling connection:'qemu+ssh......' Internal error client socket is closed TraceBack (most recent calls)engine.py: 440  conn.tickconnection.py: 1433   self.hostinfo() = self.vmm.getinfo() Is it a problem with libvirt or with my environment Thanks in advance. RegardsAbhishek