Comment 30 for bug 1704870

I have issues only when using virt-viewer/virt-manager over ssh (from Fedora25). Simple workaround is to install virt-manager on your host and add the other Qemu/KVM servers as a new connection. Did the magic for me.

https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux/6/html/Virtualization_Administration_Guide/sect-Virtualization-Managing_guests_with_the_Virtual_Machine_Manager_virt_manager-The_open_connection_window.html

https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux/6/html/Virtualization_Administration_Guide/chap-Virtualization_Administration_Guide-Remote_management_of_virtualized_guests.html