{"action":"opened","issue":{"url":"https://api.github.com/repos/aspnet/Hosting/issues/520","labels_url":"https://api.github.com/repos/aspnet/Hosting/issues/520/labels{/name}","comments_url":"https://api.github.com/repos/aspnet/Hosting/issues/520/comments","events_url":"https://api.github.com/repos/aspnet/Hosting/issues/520/events","html_url":"https://github.com/aspnet/Hosting/issues/520","id":121842256,"number":520,"title":"When starting up Kestrel throws EADDRNOTAVAIL error","user":{"login":"janpieterz","id":383634,"avatar_url":"https://avatars.githubusercontent.com/u/383634?v=3","gravatar_id":"","url":"https://api.github.com/users/janpieterz","html_url":"https://github.com/janpieterz","followers_url":"https://api.github.com/users/janpieterz/followers","following_url":"https://api.github.com/users/janpieterz/following{/other_user}","gists_url":"https://api.github.com/users/janpieterz/gists{/gist_id}","starred_url":"https://api.github.com/users/janpieterz/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/janpieterz/subscriptions","organizations_url":"https://api.github.com/users/janpieterz/orgs","repos_url":"https://api.github.com/users/janpieterz/repos","events_url":"https://api.github.com/users/janpieterz/events{/privacy}","received_events_url":"https://api.github.com/users/janpieterz/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"milestone":null,"comments":0,"created_at":"2015-12-12T08:32:21Z","updated_at":"2015-12-12T08:32:21Z","closed_at":null,"body":"When starting up the ASP.NET app in IIS, Kestrel throws the following exception:\r\n\r\n```\r\nMicrosoft.AspNet.Server.Kestrel.Networking.UvException: Error -4090 EADDRNOTAVAIL address not available\r\n   at Microsoft.AspNet.Server.Kestrel.Networking.Libuv.Check(Int32 statusCode)\r\n   at Microsoft.AspNet.Server.Kestrel.Networking.UvTcpHandle.Bind(ServerAddress address)\r\n   at Microsoft.AspNet.Server.Kestrel.Http.TcpListener.CreateListenSocket()\r\n   at Microsoft.AspNet.Server.Kestrel.Http.Listener.<>c__DisplayClass5_0.<StartAsync>b__0(Object _)\r\n```\r\n\r\nI first thought it might have something to do with having two ASP.NET apps, both listening to port 80 in IIS (different subdomain bindings though). This proved wrong when booting up a fresh VM in Azure, routing subdomain to that one and getting the same error, indicating it might be something else. The only thing I can currently think of that is significantly different from the two ASP.NET apps is that one runs on dnx-clr-win-x64.1.0.0-rc1-update1 (the failing one) and the other one still on dnx-clr-win-x64.1.0.0-rc1-final (the working one).\r\n\r\nFor reference, a StackOverflow I started before trying it on a fresh VM:\r\nhttp://stackoverflow.com/questions/34228559/how-do-i-get-httpplatformhandler-and-kestrel-to-play-nicely-with-multiple-websit"}}