[ubuntu] MaaS - Nodes can't connect to server after bootstrap

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http://ubuntuforums.org – I installed maas and I was able to add nodes and they became in ready state. I executed: juju bootstrap And then one of my nodes is waking up and I receive this message on server (after juju status): http://i.stack.imgur.com/ESWd6.jpg And this message is shown on node after it wakes up: http://i.stack.imgur.com/QyfHj.jpg I am doing this several times and each time I receive the same result. I think something is wrong with my network. It look like this: internet <-> router <-> switch <-> nodes | |<----->server (Hardware)