[9.0.main.ubuntu.bvt_2] Network verification failed

Reproduced on https://product-ci.infra.mirantis.net/job/9.0.main.ubuntu.bvt_2/559/

Console output:

Repo availability verification using public network failed on following nodes slave-02_controller.
 Following repos are not available - http://mirror.seed-cz1.fuel-infra.org/pkgs/ubuntu-2016-07-13-172538/.

After restoring the env got following logs after network re-verification:

2016-07-14 10:54:14 ERROR [29846] Error running RPC method verify_networks: Network verification not available because nodes ["5"] not available via mcollective, trace:
["/usr/share/gems/gems/astute-9.0.0/lib/astute/orchestrator.rb:238:in `validate_nodes_access'",
 "/usr/share/gems/gems/astute-9.0.0/lib/astute/orchestrator.rb:202:in `check_repositories'",
 "/usr/share/gems/gems/astute-9.0.0/lib/astute/server/dispatcher.rb:171:in `check_repositories'",
 "/usr/share/gems/gems/astute-9.0.0/lib/astute/server/dispatcher.rb:135:in `block in verify_networks'",
 "/usr/share/gems/gems/astute-9.0.0/lib/astute/server/dispatcher.rb:133:in `each'",
 "/usr/share/gems/gems/astute-9.0.0/lib/astute/server/dispatcher.rb:133:in `verify_networks'",
 "/usr/share/gems/gems/astute-9.0.0/lib/astute/server/server.rb:187:in `dispatch_message'",
 "/usr/share/gems/gems/astute-9.0.0/lib/astute/server/server.rb:146:in `block in dispatch'",
 "/usr/share/gems/gems/astute-9.0.0/lib/astute/server/task_queue.rb:64:in `call'",
 "/usr/share/gems/gems/astute-9.0.0/lib/astute/server/task_queue.rb:64:in `block in each'",
 "/usr/share/gems/gems/astute-9.0.0/lib/astute/server/task_queue.rb:56:in `each'",
 "/usr/share/gems/gems/astute-9.0.0/lib/astute/server/task_queue.rb:56:in `each'",
 "/usr/share/gems/gems/astute-9.0.0/lib/astute/server/server.rb:144:in `each_with_index'",
 "/usr/share/gems/gems/astute-9.0.0/lib/astute/server/server.rb:144:in `dispatch'",
 "/usr/share/gems/gems/astute-9.0.0/lib/astute/server/server.rb:121:in `block in perform_main_job'"]