{"action":"created","issue":{"url":"https://api.github.com/repos/GNS3/gns3-server/issues/190","labels_url":"https://api.github.com/repos/GNS3/gns3-server/issues/190/labels{/name}","comments_url":"https://api.github.com/repos/GNS3/gns3-server/issues/190/comments","events_url":"https://api.github.com/repos/GNS3/gns3-server/issues/190/events","html_url":"https://github.com/GNS3/gns3-server/issues/190","id":77282596,"number":190,"title":"Two VirtualBox VMs can't start at once","user":{"login":"ehlers","id":896406,"avatar_url":"https://avatars.githubusercontent.com/u/896406?v=3","gravatar_id":"","url":"https://api.github.com/users/ehlers","html_url":"https://github.com/ehlers","followers_url":"https://api.github.com/users/ehlers/followers","following_url":"https://api.github.com/users/ehlers/following{/other_user}","gists_url":"https://api.github.com/users/ehlers/gists{/gist_id}","starred_url":"https://api.github.com/users/ehlers/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/ehlers/subscriptions","organizations_url":"https://api.github.com/users/ehlers/orgs","repos_url":"https://api.github.com/users/ehlers/repos","events_url":"https://api.github.com/users/ehlers/events{/privacy}","received_events_url":"https://api.github.com/users/ehlers/received_events","type":"User","site_admin":false},"labels":[{"url":"https://api.github.com/repos/GNS3/gns3-server/labels/bug","name":"bug","color":"fc2929"}],"state":"open","locked":false,"assignee":null,"milestone":{"url":"https://api.github.com/repos/GNS3/gns3-server/milestones/10","html_url":"https://github.com/GNS3/gns3-server/milestones/1.3.4","labels_url":"https://api.github.com/repos/GNS3/gns3-server/milestones/10/labels","id":1098175,"number":10,"title":"1.3.4","description":"","creator":{"login":"noplay","id":345437,"avatar_url":"https://avatars.githubusercontent.com/u/345437?v=3","gravatar_id":"","url":"https://api.github.com/users/noplay","html_url":"https://github.com/noplay","followers_url":"https://api.github.com/users/noplay/followers","following_url":"https://api.github.com/users/noplay/following{/other_user}","gists_url":"https://api.github.com/users/noplay/gists{/gist_id}","starred_url":"https://api.github.com/users/noplay/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/noplay/subscriptions","organizations_url":"https://api.github.com/users/noplay/orgs","repos_url":"https://api.github.com/users/noplay/repos","events_url":"https://api.github.com/users/noplay/events{/privacy}","received_events_url":"https://api.github.com/users/noplay/received_events","type":"User","site_admin":false},"open_issues":2,"closed_issues":11,"state":"open","created_at":"2015-05-06T07:51:01Z","updated_at":"2015-06-01T14:12:48Z","due_on":null,"closed_at":null},"comments":19,"created_at":"2015-05-17T11:07:38Z","updated_at":"2015-06-01T15:40:16Z","closed_at":null,"body":"GNS3 V1.3.3, OS Mac OS X V10.9.5, VirtualBox 4.3.28\r\n\r\nSee https://community.gns3.com/message/27540#27540\r\n\r\nTopology:\r\n![eos](https://cloud.githubusercontent.com/assets/896406/7670057/a3a06f84-fc94-11e4-9f7b-0fd1b29a48aa.png)\r\n\r\nIf I start all devices at once, one of the VirtualBox VMs doesn't start. It's reproducible, it happens all the time. They are not linked clones, just 2 \"normal\" VMs. When I start one VM, wait a few seconds and then start the rest, everything works fine.\r\n\r\nThe log shows:\r\n```\r\nMay 17 12:40:52 imac.lan GNS3[2574] <Notice>: 2015-05-17 12:40:52 INFO virtualbox_vm.pyc:188 VirtualBox VM 'vEOS2' [a6f7e4b6-d77d-4287-983a-5ba74be52c7d] started\r\nMay 17 12:40:52 imac.lan GNS3[2574] <Notice>: 2015-05-17 12:40:52 ERROR route.pyc:150 VM error detected: <class 'gns3server.modules.virtualbox.virtualbox_error.VirtualBoxError'>\r\nMay 17 12:40:52 imac.lan GNS3[2574] <Notice>: Traceback (most recent call last):\r\nMay 17 12:40:52 imac.lan GNS3[2574] <Notice>:   File \"gns3server/web/route.pyc\", line 140, in control_schema\r\nMay 17 12:40:52 imac.lan GNS3[2574] <Notice>:   File \"gns3server/handlers/api/virtualbox_handler.pyc\", line 193, in start\r\nMay 17 12:40:52 imac.lan GNS3[2574] <Notice>:   File \"gns3server/modules/virtualbox/virtualbox_vm.pyc\", line 187, in start\r\nMay 17 12:40:52 imac.lan GNS3[2574] <Notice>:   File \"gns3server/modules/virtualbox/__init__.pyc\", line 114, in execute\r\nMay 17 12:40:52 imac.lan GNS3[2574] <Notice>: gns3server.modules.virtualbox.virtualbox_error.VirtualBoxError: VirtualBox has returned an error: \r\nMay 17 12:40:52 imac.lan GNS3[2574] <Notice>: 2015-05-17 12:40:52 INFO server.pyc:169 127.0.0.1 - - Sun, 17 May 2015 10:40:52 GMT \"POST /v1/projects/effde697-b8c6-49e7-abde-93fbd0234d1f/virtualbox/vms/c5a9a8db-41f9-4074-904f-058f047365b5/start HTTP/1.1\" 409 308 \"-\" \"GNS3 QT Client v1.3.3\"\r\nMay 17 12:40:52 imac.lan GNS3[2574] <Notice>: 2015-05-17 12:40:52 INFO http_client.pyo:362 Response error: Error downloading http://192.168.1.10:8000/v1/projects/effde697-b8c6-49e7-abde-93fbd0234d1f/virtualbox/vms/c5a9a8db-41f9-4074-904f-058f047365b5/start - server replied: Conflict\r\nMay 17 12:40:52 imac.lan GNS3[2574] <Notice>: 2015-05-17 12:40:52 ERROR vm.pyo:96 error while starting vEOS1: VirtualBox has returned an error: \r\nMay 17 12:40:52 imac.lan GNS3[2574] <Notice>: 2015-05-17 12:40:52 INFO server.pyc:169 127.0.0.1 - - Sun, 17 May 2015 10:40:52 GMT \"POST /v1/projects/effde697-b8c6-49e7-abde-93fbd0234d1f/virtualbox/vms/a6f7e4b6-d77d-4287-983a-5ba74be52c7d/start HTTP/1.1\" 204 203 \"-\" \"GNS3 QT Client v1.3.3\"\r\nMay 17 12:40:52 imac.lan GNS3[2574] <Notice>: 2015-05-17 12:40:52 INFO vm.pyo:99 vEOS2 has started\r\n```"},"comment":{"url":"https://api.github.com/repos/GNS3/gns3-server/issues/comments/107592456","html_url":"https://github.com/GNS3/gns3-server/issues/190#issuecomment-107592456","issue_url":"https://api.github.com/repos/GNS3/gns3-server/issues/190","id":107592456,"user":{"login":"noplay","id":345437,"avatar_url":"https://avatars.githubusercontent.com/u/345437?v=3","gravatar_id":"","url":"https://api.github.com/users/noplay","html_url":"https://github.com/noplay","followers_url":"https://api.github.com/users/noplay/followers","following_url":"https://api.github.com/users/noplay/following{/other_user}","gists_url":"https://api.github.com/users/noplay/gists{/gist_id}","starred_url":"https://api.github.com/users/noplay/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/noplay/subscriptions","organizations_url":"https://api.github.com/users/noplay/orgs","repos_url":"https://api.github.com/users/noplay/repos","events_url":"https://api.github.com/users/noplay/events{/privacy}","received_events_url":"https://api.github.com/users/noplay/received_events","type":"User","site_admin":false},"created_at":"2015-06-01T15:40:16Z","updated_at":"2015-06-01T15:40:16Z","body":"I understand the issue :) It's related to VPCS. \r\n\r\nVPCS allocate an UDP port at source + 9 sometimes it's collide with VirtualBox"}}