I'm also seeing this on Debian jessie as of a recent update. A workaround for me was to ignore the virbr0 interface in /etc/NetworkManager/NetworkManager.conf:
[main] plugins=ifupdown,keyfile [ifupdown] managed=false [keyfile] unmanaged-devices=interface-name:virbr0 Hopefully we can find a way to revert to the previous behavior, which did not require a workaround. -- Matt Horan m...@matthoran.com http://matthoran.com/
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