[INFO] Plugin IISBinding generated target [IISBinding] my.domain.com (SiteId 1) [ @ %SystemDrive%\inetpub\wwwroot
]
 [DBUG] Scanning IIS site bindings for hosts
 [WARN] Proxying via 172.28.11.2
 [DBUG] Loading signer from C:\ProgramData\letsencrypt-win-simple\httpsacme-v01.api.letsencrypt.org\Signer
 [DBUG] Getting AcmeServerDirectory
 [DBUG] Send GET request to https://acme-v01.api.letsencrypt.org/directory
 [DBUG] Loading registration from C:\ProgramData\letsencrypt-win-simple\httpsacme-v01.api.letsencrypt.org\Registration
 [INFO] Authorize identifier: my.domain.com
 [DBUG] Send POST request to https://acme-v01.api.letsencrypt.org/acme/new-authz
 [INFO] Authorizing my.domain.com using http-01 validation (SelfHosting)
 [DBUG] Writing web.config
 [INFO] Answer should now be browsable at http://my.domain.com/.well-known/acme-challenge/LYi3PfDlyhZhHtJKE5oGT5MR
fJKeh8_3Y8BajO8YOmk
 [DBUG] Submitting answer
 [DBUG] Send POST request to https://acme-v01.api.letsencrypt.org/acme/challenge/Vd9riR3qDdn3vZ8v7RAOCMmOMo1Dwuf2-LIKHIO
ssmY/3554724496
 [DBUG] Refreshing authorization
 [VERB] SelfHosting plugin serving file /.well-known/acme-challenge/LYi3PfDlyhZhHtJKE5oGT5MRfJKeh8_3Y8BajO8YOmk
 [DBUG] Send GET request to https://acme-v01.api.letsencrypt.org/acme/authz/Vd9riR3qDdn3vZ8v7RAOCMmOMo1Dwuf2-LIKHIOssmY
 [INFO] Authorization result: valid
 [DBUG] Deleting web.config
 [DBUG] Deleting answer
 [DBUG] Certificate folder: C:\ProgramData\letsencrypt-win-simple\httpsacme-v01.api.letsencrypt.org
 [DBUG] Certificate store: My
 [DBUG] RSAKeyBits: 2048
 [INFO] Requesting certificate my.domain.com 2018.2.22 9:33:04 EL
 [DBUG] Send POST request to https://acme-v01.api.letsencrypt.org/acme/new-cert
 [INFO] Saving certificate to C:\ProgramData\letsencrypt-win-simple\httpsacme-v01.api.letsencrypt.org
 [DBUG] WebException: WebException {Status=ConnectFailure, Response=null, Message="Unable to connect to the remote serve
r", Data=[], InnerException=SocketException {ErrorCode=10060, Message="A connection attempt failed because the connected
 party did not properly respond after a period of time, or established connection failed because connected host has fail
ed to respond 23.79.197.59:443", SocketErrorCode=TimedOut, NativeErrorCode=10060, Data=[], InnerException=null, TargetSi
te=Void DoConnect(System.Net.EndPoint, System.Net.SocketAddress), StackTrace="   at System.Net.Sockets.Socket.DoConnect(
EndPoint endPointSnapshot, SocketAddress socketAddress)\r\n   at System.Net.ServicePoint.ConnectSocketInternal(Boolean c
onnectFailure, Socket s4, Socket s6, Socket& socket, IPAddress& address, ConnectSocketState state, IAsyncResult asyncRes
ult, Exception& exception)", HelpLink=null, Source="System", HResult=-2147467259}, TargetSite=System.IO.Stream OpenRead(
System.Uri), StackTrace="   at System.Net.WebClient.OpenRead(Uri address)\r\n   at LetsEncrypt.ACME.Simple.Services.Cert
ificateService.GetIssuerCertificate(CertificateRequest certificate, CertificateProvider cp)\r\n   at LetsEncrypt.ACME.Si
mple.Services.CertificateService.RequestCertificate(Target binding)\r\n   at LetsEncrypt.ACME.Simple.Program.OnRenewSucc
ess(ILifetimeScope renewalScope, ScheduledRenewal renewal)", HelpLink=null, Source="System", HResult=-2146233079}
 [EROR] WebException: Unable to connect to the remote server
 [EROR] Create certificate failed