Network verification failed

{"build_id": "2015-05-05_03-45-03", "build_number": "377", "release_versions": {"2014.2.2-6.1": {"VERSION": {"build_id": "2015-05-05_03-45-03", "build_number": "377", "api": "1.0", "fuel-library_sha": "b3fa159e997b2965942a0ad784d07fec3c42619c", "nailgun_sha": "30f53858053ef48920009de3ed7e5b148b9d9504", "feature_groups": ["mirantis"], "openstack_version": "2014.2.2-6.1", "production": "docker", "python-fuelclient_sha": "603e659ad4b0f35ba1127155037c1866034dc395", "astute_sha": "b93c276bd8cf5018589cf762e1320dca1f14b9ad", "fuel-ostf_sha": "8a29f80cffe985dea6a3de78b733d07ec4db93fc", "release": "6.1", "fuelmain_sha": "42297c8034836a33506e80d13bd6a898b6d7d71c"}}}, "auth_required": true, "api": "1.0", "fuel-library_sha": "b3fa159e997b2965942a0ad784d07fec3c42619c", "nailgun_sha": "30f53858053ef48920009de3ed7e5b148b9d9504", "feature_groups": ["mirantis"], "openstack_version": "2014.2.2-6.1", "production": "docker", "python-fuelclient_sha": "603e659ad4b0f35ba1127155037c1866034dc395", "astute_sha": "b93c276bd8cf5018589cf762e1320dca1f14b9ad", "fuel-ostf_sha": "8a29f80cffe985dea6a3de78b733d07ec4db93fc", "release": "6.1", "fuelmain_sha": "42297c8034836a33506e80d13bd6a898b6d7d71c"}

Create env, neutron with vlan. We had 3 controllers, 2 computes with cinder, sahara, murano, nodes 3gb ram, 150gb disk. But I think it will be reproduced on any smaller env.

The networks seems to work correct and the env was successfully deployed. But in dashboard 'network verification failed' error was shown, please look the screenshot.