{"action":"opened","issue":{"url":"https://api.github.com/repos/docker/machine/issues/1611","labels_url":"https://api.github.com/repos/docker/machine/issues/1611/labels{/name}","comments_url":"https://api.github.com/repos/docker/machine/issues/1611/comments","events_url":"https://api.github.com/repos/docker/machine/issues/1611/events","html_url":"https://github.com/docker/machine/issues/1611","id":98075028,"number":1611,"title":"Virtualbox DHCP Issue :: Magically NOT working","user":{"login":"blaggacao","id":7548295,"avatar_url":"https://avatars.githubusercontent.com/u/7548295?v=3","gravatar_id":"","url":"https://api.github.com/users/blaggacao","html_url":"https://github.com/blaggacao","followers_url":"https://api.github.com/users/blaggacao/followers","following_url":"https://api.github.com/users/blaggacao/following{/other_user}","gists_url":"https://api.github.com/users/blaggacao/gists{/gist_id}","starred_url":"https://api.github.com/users/blaggacao/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/blaggacao/subscriptions","organizations_url":"https://api.github.com/users/blaggacao/orgs","repos_url":"https://api.github.com/users/blaggacao/repos","events_url":"https://api.github.com/users/blaggacao/events{/privacy}","received_events_url":"https://api.github.com/users/blaggacao/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"milestone":null,"comments":0,"created_at":"2015-07-30T02:57:41Z","updated_at":"2015-07-30T02:57:41Z","closed_at":null,"body":"Very nasty, and difficult to figure out. Seems to be around quite a bit and got no fix.\r\n\r\nIn my case after an update from Version 4.3.28 to 4.3.30, this broke the DHCP servers. Symptoms are, that docker machine commands show the following message:\r\n\r\n`Unexpected error getting machine url: exit status 255`\r\nor\r\n`error getting URL for host MACHINENAME: exit status 255`\r\n\r\n`VBoxManage list hostonlyifs` yields (in my case):\r\n```\r\nName:            VirtualBox Host-Only Ethernet Adapter\r\nGUID:            cb5410d0-f723-498c-a93b-becf9e18e4fa\r\nDHCP:            Disabled\r\nIPAddress:       192.168.57.1\r\nNetworkMask:     255.255.255.0\r\nIPV6Address:     fe80:0000:0000:0000:c058:474d:8c15:88f3\r\nIPV6NetworkMaskPrefixLength: 64\r\nHardwareAddress: 08:00:27:00:3c:33\r\nMediumType:      Ethernet\r\nStatus:          Up\r\nVBoxNetworkName: HostInterfaceNetworking-VirtualBox Host-Only Ethernet Adapter\r\n```\r\n\r\n*** Note, that *** DHCP is shown as disabled. This result is also yielded by the Windows Repair tool run on this adapter, but it cannot fix it automatically (probably, confirm, if this is the case with you, having a similar problem, as well).\r\n\r\nOn the other hand:\r\n`VBoxManage.exe list dhcpservers` yields a bunch of legacy:\r\n```\r\nNetworkName:    HostInterfaceNetworking-VirtualBox Host-Only Ethernet Adapter #3\r\nIP:             192.168.99.2\r\nNetworkMask:    255.255.255.0\r\nlowerIPAddress: 192.168.99.100\r\nupperIPAddress: 192.168.99.254\r\nEnabled:        Yes\r\n\r\nNetworkName:    HostInterfaceNetworking-VirtualBox Host-Only Ethernet Adapter #4\r\nIP:             192.168.99.1\r\nNetworkMask:    255.255.255.0\r\nlowerIPAddress: 192.168.99.100\r\nupperIPAddress: 192.168.99.254\r\nEnabled:        Yes\r\n\r\nNetworkName:    HostInterfaceNetworking-VirtualBox Host-Only Ethernet Adapter\r\nIP:             192.168.57.100\r\nNetworkMask:    255.255.255.0\r\nlowerIPAddress: 192.168.57.101\r\nupperIPAddress: 192.168.57.254\r\nEnabled:        Yes\r\n```\r\nNote, that it pretends that the DHCP correpsonding to the Adapter indeed shows as \"enablend\".\r\n\r\nSeems, like this issue has been discussed here: https://forums.virtualbox.org/viewtopic.php?f=6&t=37402"}}