HttpWebRequest 15 segundos de retraso Problema de rendimiento
https://stackoverflow.com/questions/7341180
-
27-10-2019 - |
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Tengo una aplicación C# Windows que se ejecuta como "Servicio NT Authority Network" que debe hacer una solicitud de publicación a través de HTTPS al servidor alojado en Apache Tomcat. Estoy usando httpwebrequest para emitir la solicitud. Estoy aceptando el certificado del servidor configurando un delegado ServicePointManager.ServerCertificAdValidationCallback. Hay un retraso largo (~ 15 segundos) entre la llamada a httpwebRequest.getRequestStream () y la invocación de la devolución de llamada ServerCertificateValidationCallball.
Cuando ejecuto el mismo código que LocalSystem, funciona bien sin el retraso. ¿Qué podría estar mal?
Cosas que he probado hasta ahora:
- Deshabilitar proxy configurando request.proxy = null y configurando defaultproxy habilitado = "falso" en app.config
- Configuración de request.servicePoint.expect100Continue = False
- Configuración de ServicePointManager.CheckCertificAteVocationList = False
- ServicePointManager.expect100Continue = False
========================================================================
Nada de esto parece funcionar. Todavía hay un retraso constante de 15 segundos en httpwebrequest.getRequestStream (). También recolectó System.net Traces.
Código:
ServicePointManager.ServerCertificateValidationCallback = new RemoteCertificateValidationCallback(ValidateRemoteCertificate);
ServicePointManager.Expect100Continue = false;
ServicePointManager.CheckCertificateRevocationList = false;
public static bool ValidateRemoteCertificate( object sender, X509Certificate certificate, X509Chain chain, SslPolicyErrors policyErrors)
{
Trace.TraceInformation("HttpWebClient.ValidateRemoteCertificate: Implicitly allowing SSL certificate");
return true;
}
Cliente web:
HttpWebRequest request = (HttpWebRequest) HttpWebRequest.Create(uri);
request.KeepAlive = false;
request.ProtocolVersion = HttpVersion.Version11;
request.Method = "POST";
request.Proxy = null;
request.AuthenticationLevel = AuthenticationLevel.None;
request.AllowWriteStreamBuffering = false;
request.ServicePoint.Expect100Continue = false;
byte[] postBytes = Encoding.ASCII.GetBytes(post_data);
request.ContentType = "application/x-www-form-urlencoded";
request.ContentLength = postBytes.Length;
try
{
Stream requestStream = request.GetRequestStream();
Trace.TraceInformation("HttpWebClient.SendRequest Sending request of length {0}...", postBytes.Length);
requestStream.Write(postBytes, 0, postBytes.Length);
Trace.TraceInformation("HttpWebClient.SendRequest Request sent");
requestStream.Close();
}
catch (Exception e)
{
Trace.TraceInformation("HttpWebClient.sendRequest: exception {0}, {1}", e.Message, e.StackTrace);
}
Trace.TraceInformation("HttpWebClient.SendRequest Fetching HTTP response...");
HttpWebResponse response;
response = (HttpWebResponse)request.GetResponse();
System.net Rastres: de las trazas, el retraso de 15 segundos es del 2011-09-07T21: 42: 16.7796885z a 2011-09-07T21: 42: 31.7897095z. Los errores reportados son: el certificado remoto tiene errores:, desajuste del nombre del certificado, una cadena de certificado procesada, pero termina en un certificado raíz en el que el proveedor de fideicomiso no confía en el que no confía.
> DateTime=2011-09-07T21:42:16.7596885Z System.Net.Sockets Verbose:
> 0 : [0412] Socket#48285313::Receive()
> DateTime=2011-09-07T21:42:16.7596885Z System.Net.Sockets Verbose:
> 0 : [0412] Data from Socket#48285313::Receive
> DateTime=2011-09-07T21:42:16.7596885Z System.Net.Sockets Verbose:
> 0 : [0412] 00000000 : 14 03 01 00 01
> : .....
> DateTime=2011-09-07T21:42:16.7596885Z System.Net.Sockets Verbose:
> 0 : [0412] Exiting Socket#48285313::Receive() -> 5#5
> DateTime=2011-09-07T21:42:16.7596885Z System.Net.Sockets Verbose:
> 0 : [0412] Socket#48285313::Receive()
> DateTime=2011-09-07T21:42:16.7596885Z System.Net.Sockets Verbose:
> 0 : [0412] Data from Socket#48285313::Receive
> DateTime=2011-09-07T21:42:16.7596885Z System.Net.Sockets Verbose:
> 0 : [0412] 00000005 : 01
> : .
> DateTime=2011-09-07T21:42:16.7596885Z System.Net.Sockets Verbose:
> 0 : [0412] Exiting Socket#48285313::Receive() -> 1#1
> DateTime=2011-09-07T21:42:16.7596885Z System.Net Information: 0 :
> [0412] InitializeSecurityContext(credential =
> System.Net.SafeFreeCredential_SECURITY, context = 4b0cd8:12d34d0,
> targetName = 172.16.2.142, inFlags = ReplayDetect, SequenceDetect,
> Confidentiality, AllocateMemory, InitManualCredValidation)
> DateTime=2011-09-07T21:42:16.7596885Z System.Net Information: 0 :
> [0412] InitializeSecurityContext(In-Buffers count=2, Out-Buffer
> length=0, returned code=ContinueNeeded).
> DateTime=2011-09-07T21:42:16.7696885Z System.Net.Sockets Verbose:
> 0 : [0412] Socket#48285313::Receive()
> DateTime=2011-09-07T21:42:16.7696885Z System.Net.Sockets Verbose:
> 0 : [0412] Data from Socket#48285313::Receive
> DateTime=2011-09-07T21:42:16.7696885Z System.Net.Sockets Verbose:
> 0 : [0412] 00000000 : 16 03 01 00 30
> : ....0
> DateTime=2011-09-07T21:42:16.7696885Z System.Net.Sockets Verbose:
> 0 : [0412] Exiting Socket#48285313::Receive() -> 5#5
> DateTime=2011-09-07T21:42:16.7696885Z System.Net.Sockets Verbose:
> 0 : [0412] Socket#48285313::Receive()
> DateTime=2011-09-07T21:42:16.7696885Z System.Net.Sockets Verbose:
> 0 : [0412] Data from Socket#48285313::Receive
> DateTime=2011-09-07T21:42:16.7696885Z System.Net.Sockets Verbose:
> 0 : [0412] 00000005 : A6 50 8C D0 69 C7 46 E5-AB AA B7 D9 02 08 DF E7
> : .P..i.F.........
> DateTime=2011-09-07T21:42:16.7696885Z System.Net.Sockets Verbose:
> 0 : [0412] 00000015 : C1 49 0C 98 6C 2F 4C 06-3E 3C 00 ED D2 09 70 56
> : .I..l/L.><....pV
> DateTime=2011-09-07T21:42:16.7696885Z System.Net.Sockets Verbose:
> 0 : [0412] 00000025 : AB 4A E0 E8 5F B0 04 0D-3C 97 41 CE A1 B2 89 26
> : .J.._...<.A....&
> DateTime=2011-09-07T21:42:16.7696885Z System.Net.Sockets Verbose:
> 0 : [0412] Exiting Socket#48285313::Receive() -> 48#48
> DateTime=2011-09-07T21:42:16.7696885Z System.Net Information: 0 :
> [0412] InitializeSecurityContext(credential =
> System.Net.SafeFreeCredential_SECURITY, context = 4b0cd8:12d34d0,
> targetName = 172.16.2.142, inFlags = ReplayDetect, SequenceDetect,
> Confidentiality, AllocateMemory, InitManualCredValidation)
> DateTime=2011-09-07T21:42:16.7696885Z System.Net Information: 0 :
> [0412] InitializeSecurityContext(In-Buffers count=2, Out-Buffer
> length=0, returned code=OK).
> DateTime=2011-09-07T21:42:16.7696885Z System.Net Information: 0 :
> [0412] Remote certificate: [Version] V3
>
> [Subject] CN=company Desktop Server, OU=company Desktops, O=company
> Inc., L=city, S=California, C=US Simple Name: company Desktop Server
> DNS Name: company Desktop Server
>
> [Issuer] CN=company Desktop Server, OU=company Desktops, O=company
> Inc., L=city, S=California, C=US Simple Name: company Desktop Server
> DNS Name: company Desktop Server
>
> [Serial Number] AAAAAAAA
>
> [Not Before] 8/26/2011 9:41:33 PM
>
> [Not After] 9/2/2021 9:41:33 PM
>
> [Thumbprint] 46E130D012348CE5EA5E570CCDA5F872A1111111
>
> [Signature Algorithm] sha1RSA(1.2.840.113549.1.1.5)
>
> [Public Key] Algorithm: RSA Length: 1024 Key Blob: 30 81 89 02
> 81 81 00 85 9b fd 1b fc d3 98 3b 67 1b a0 7f fc 7c 69 f9 11 0e 93 d3
> 9b 06 cc 1e 73 74 ed d2 bc 60 1b 4d 62 c7 96 70 99 7f 59 89 f3 d1 c7
> 28 7a e3 d8 98 90 36 52 b9 99 eb fa 68 4b ea 4c 5d 07 88 75 1a 59 8e
> e0 b0 54 c9 f2 a5 94 47 6a 91 07 83 29 4c 0b fc ef 38 72 08 26 0a ba
> b9 85 0e e6 2e a6 29 8d ca 5b 9b e5 41 a5 66 73 e0 37 34 f0 7a a....
**> **DateTime=2011-09-07T21:42:16.7796885Z System.Net Information: 0 :
> [0412] SecureChannel#46104728 - Remote certificate has errors:
> DateTime=2011-09-07T21:42:31.7897095Z System.Net Information: 0 :
> [0412] SecureChannel#46104728 - Certificate name mismatch.
> DateTime=2011-09-07T21:42:31.7897095Z System.Net Information: 0 :
> [0412] SecureChannel#46104728 - A certificate chain processed, but
> terminated in a root certificate which is not trusted by the trust
> provider.
>
> DateTime=2011-09-07T21:42:31.7897095Z System.Net Information: 0 :
> [0412] SecureChannel#46104728 - Remote certificate was verified as
> valid by the user.****
> DateTime=2011-09-07T21:42:31.7897095Z System.Net.Sockets Verbose:
> 0 : [0412] Socket#48285313::Send()
> DateTime=2011-09-07T21:42:31.7897095Z System.Net.Sockets Verbose:
> 0 : [0412] Data from Socket#48285313::Send
> DateTime=2011-09-07T21:42:31.7897095Z System.Net.Sockets Verbose:
> 0 : [0412] 00000000 : 17 03 01 00 B0 B5 76 03-D9 27 40 8F F8 FE 7E FE
> : ......v..'@...~.
> DateTime=2011-09-07T21:42:31.7897095Z System.Net.Sockets Verbose:
> 0 : [0412] 00000010 : 94 09 8B F9 73 2D 0C 3E-F9 34 2C 00 C3 6D 59 63
> : ....s-.>.4,..mYc
> DateTime=2011-09-07T21:42:31.7897095Z System.Net.Sockets Verbose:
> 0 : [0412] 00000020 : C0 2E EB 03 BE 4E 7D 41-5C D6 ED 85 E9 9C 06 33
> : .....N}A\......3
> DateTime=2011-09-07T21:42:31.7897095Z System.Net.Sockets Verbose:
> 0 : [0412] 00000030 : 72 1A AE 81 BB 86 29 C7-F0 03 F6 66 A6 2C 75 98
> : r.....)....f.,u.
> DateTime=2011-09-07T21:42:31.7897095Z System.Net.Sockets Verbose:
> 0 : [0412] 00000040 : D4 3A 74 02 C7 F8 63 DE-23 18 51 95 9C 2C 1A 01
> : .:t...c.#.Q..,..
> DateTime=2011-09-07T21:42:31.7897095Z System.Net.Sockets Verbose:
> 0 : [0412] 00000050 : 42 03 36 B6 29 FE 00 B5-83 4A DE E1 F5 34 22 B1
> : B.6.)....J...4".
> DateTime=2011-09-07T21:42:31.7897095Z System.Net.Sockets Verbose:
> 0 : [0412] 00000060 : E7 42 0F D8 88 D7 72 CA-9C D1 AC 18 D9 2B 55 39
> : .B....r......+U9
> DateTime=2011-09-07T21:42:31.7897095Z System.Net.Sockets Verbose:
> 0 : [0412] 00000070 : 3E 8B A4 A2 2D 8B 10 30-0A 40 D4 08 F7 26 56 7B
> : >...-..0.@...&V{
> DateTime=2011-09-07T21:42:31.7897095Z System.Net.Sockets Verbose:
> 0 : [0412] 00000080 : FF 6A CC 60 BB BE 80 6A-1C 0A AE C7 3B 86 85 09
> : .j.`...j....;...
> DateTime=2011-09-07T21:42:31.7897095Z System.Net.Sockets Verbose:
> 0 : [0412] 00000090 : FD 92 AA A4 56 91 24 9F-50 7C B5 10 10 7B BA 06
> : ....V.$.P|...{..
> DateTime=2011-09-07T21:42:31.7897095Z System.Net.Sockets Verbose:
> 0 : [0412] 000000A0 : D0 78 77 6A 2E 00 50 CD-C8 5C 33 06 E6 4A 17 17
> : .xwj..P..\3..J..
> DateTime=2011-09-07T21:42:31.7897095Z System.Net.Sockets Verbose:
> 0 : [0412] 000000B0 : 93 98 20 EE 41
> : .. .A
> DateTime=2011-09-07T21:42:31.7897095Z System.Net.Sockets Verbose:
> 0 : [0412] Exiting Socket#48285313::Send() -> 181#181
> DateTime=2011-09-07T21:42:31.7897095Z System.Net Information: 0 :
> [0412] ConnectStream#34948909 - Sending headers { Content-Type:
> application/x-www-form-urlencoded Host: 172.16.2.142 Content-Length:
> 38 Connection: Close }.
> DateTime=2011-09-07T21:42:31.7897095Z System.Net Verbose: 0 :
> [0412] Exiting HttpWebRequest#33574638::GetRequestStream() ->
> ConnectStream#34948909
> DateTime=2011-09-07T21:42:31.7897095Z System.Net Verbose: 0 :
> [0412] ConnectStream#34948909::Write()
> DateTime=2011-09-07T21:42:31.7897095Z System.Net.Sockets Verbose:
> 0 : [0412] Socket#48285313::Send()
> DateTime=2011-09-07T21:42:31.7897095Z System.Net.Sockets Verbose:
> 0 : [0412] Data from Socket#48285313::Send
> DateTime=2011-09-07T21:42:31.7897095Z System.Net.Sockets Verbose:
> 0 : [0412] 00000000 : 17 03 01 00 40 01 D7 42-04 F0 1C 0A 00 2C 39 70
> : ....@..B.....,9p
> DateTime=2011-09-07T21:42:31.7897095Z System.Net.Sockets Verbose:
> 0 : [0412] 00000010 : 7F C8 55 03 99 25 66 06-CD 6F 28 6E E7 7B 04 71
> : ..U..%f..o(n.{.q
> DateTime=2011-09-07T21:42:31.7897095Z System.Net.Sockets Verbose:
> 0 : [0412] 00000020 : C0 25 EF 63 2B 0D 64 0B-AC C2 05 22 E0 0C 88 2D
> : .%.c+.d...."...-
> DateTime=2011-09-07T21:42:31.7897095Z System.Net.Sockets Verbose:
> 0 : [0412] 00000030 : 7A C9 B2 2B C1 32 8B 54-BA F8 6D 4D A2 17 A6 77
> : z..+.2.T..mM...w
> DateTime=2011-09-07T21:42:31.7897095Z System.Net.Sockets Verbose:
> 0 : [0412] 00000040 : 38 CB 38 B0 88
> : 8.8..
> DateTime=2011-09-07T21:42:31.7897095Z System.Net.Sockets Verbose:
> 0 : [0412] Exiting Socket#48285313::Send() -> 69#69
> DateTime=2011-09-07T21:42:31.7897095Z System.Net Verbose: 0 :
> [0412] Data from ConnectStream#34948909::Write
> DateTime=2011-09-07T21:42:31.7897095Z System.Net Verbose: 0 :
> [0412] 00000000 : 6C 61 75 6E 63 68 52 65-66 3D 30 31 32 33 34 35 :
> launchRef=012345
> DateTime=2011-09-07T21:42:31.7897095Z System.Net Verbose: 0 :
> [0412] 00000010 : 36 37 38 39 26 74 69 63-6B 65 74 3D 39 38 37 36 :
> 6789&ticket=9876
> DateTime=2011-09-07T21:42:31.7897095Z System.Net Verbose: 0 :
> [0412] 00000020 : 35 34 33 32 31 30 :
> 543210
> DateTime=2011-09-07T21:42:31.7897095Z System.Net Verbose: 0 :
> [0412] Exiting ConnectStream#34948909::Write()
> DateTime=2011-09-07T21:42:31.7897095Z System.Net Verbose: 0 :
> [0412] ConnectStream#34948909::Close()
> DateTime=2011-09-07T21:42:31.7997096Z System.Net Verbose: 0 :
> [0412] Exiting ConnectStream#34948909::Close()
> DateTime=2011-09-07T21:42:31.7997096Z System.Net Verbose: 0 :
> [0412] ConnectStream#34948909::Close()
> DateTime=2011-09-07T21:42:31.7997096Z System.Net Verbose: 0 :
> [0412] Exiting ConnectStream#34948909::Close()
> DateTime=2011-09-07T21:42:31.7997096Z System.Net Verbose: 0 :
> [0412] HttpWebRequest#33574638::GetResponse()
> DateTime=2011-09-07T21:42:31.7997096Z System.Net.Sockets Verbose:
> 0 : [0412] Socket#48285313::Receive()
> DateTime=2011-09-07T21:42:31.7997096Z System.Net.Sockets Verbose:
> 0 : [0412] Data from Socket#48285313::Receive
> DateTime=2011-09-07T21:42:31.8297096Z System.Net.Sockets Verbose:
> 0 : [0412] 00000000 : 17 03 01 00 90
> : .....
> DateTime=2011-09-07T21:42:31.8297096Z System.Net.Sockets Verbose:
> 0 : [0412] Exiting Socket#48285313::Receive() -> 5#5
> DateTime=2011-09-07T21:42:31.8297096Z System.Net.Sockets Verbose:
> 0 : [0412] Socket#48285313::Receive()
> DateTime=2011-09-07T21:42:31.8297096Z System.Net.Sockets Verbose:
> 0 : [0412] Data from Socket#48285313::Receive
> DateTime=2011-09-07T21:42:31.8297096Z System.Net.Sockets Verbose:
> 0 : [0412] 00000005 : 80 05 0D 3E 37 E7 28 EB-EC 78 7C BC 20 DB 61 7B
> : ...>7.(..x|. .a{
> DateTime=2011-09-07T21:42:31.8297096Z System.Net.Sockets Verbose:
> 0 : [0412] 00000015 : 73 8F 6E 71 A1 D6 B9 EA-04 C9 92 E9 8A 88 71 C6
> : s.nq..........q.
> DateTime=2011-09-07T21:42:31.8297096Z System.Net.Sockets Verbose:
> 0 : [0412] 00000025 : 7E DB 72 94 80 08 3F 14-CE 12 CC 5D F5 07 91 D0
> : ~.r...?....]....
> DateTime=2011-09-07T21:42:31.8297096Z System.Net.Sockets Verbose:
> 0 : [0412] 00000035 : FB EF 7F 51 57 ED 2D 60-11 11 F8 1C 9C 58 99 E5
> : ...QW.-`.....X..
> DateTime=2011-09-07T21:42:31.8297096Z System.Net.Sockets Verbose:
> 0 : [0412] 00000045 : 20 8B 5B 0E 61 3C 55 05-89 75 72 F0 F0 5B 92 88
> : .[.a<U..ur..[..
> DateTime=2011-09-07T21:42:31.8297096Z System.Net.Sockets Verbose:
> 0 : [0412] 00000055 : 40 C0 39 92 9B 21 E9 9E-69 A0 A8 53 9D 63 96 A5
> : @.9..!..i..S.c..
> DateTime=2011-09-07T21:42:31.8297096Z System.Net.Sockets Verbose:
> 0 : [0412] 00000065 : C9 82 02 68 75 DD 44 E3-D7 90 57 66 3C F0 4E A3
> : ...hu.D...Wf<.N.
> DateTime=2011-09-07T21:42:31.8297096Z System.Net.Sockets Verbose:
> 0 : [0412] 00000075 : 6E F9 46 4C 40 EB 6A 74-EF 8E E9 76 4B 78 77 D4
> : n.FL@.jt...vKxw.
> DateTime=2011-09-07T21:42:31.8297096Z System.Net.Sockets Verbose:
> 0 : [0412] 00000085 : A1 B1 97 01 BB 90 A9 CB-F7 C5 64 BE 0E 83 B3 6C
> : ..........d....l
> DateTime=2011-09-07T21:42:31.8297096Z System.Net.Sockets Verbose:
> 0 : [0412] Exiting Socket#48285313::Receive() -> 144#144
> DateTime=2011-09-07T21:42:31.8297096Z System.Net Information: 0 :
> [0412] Connection#35191196 - Received status line: Version=1.1,
> StatusCode=200, StatusDescription=OK.
> DateTime=2011-09-07T21:42:31.8297096Z System.Net Information: 0 :
> [0412] Connection#35191196 - Received headers { Connection: close
> Content-Length: 2 Date: Wed, 07 Sep 2011 14:37:30 GMT Server:
> Apache-Coyote/1.1 }.
> DateTime=2011-09-07T21:42:31.8297096Z System.Net Information: 0 :
> [0412] ConnectStream#12289376::ConnectStream(Buffered 2 bytes.)
> DateTime=2011-09-07T21:42:31.8297096Z System.Net Information: 0 :
> [0412] Associating HttpWebRequest#33574638 with ConnectStream#12289376
> DateTime=2011-09-07T21:42:31.8297096Z System.Net Information: 0 :
> [0412] Associating HttpWebRequest#33574638 with
> HttpWebResponse#43495525
> DateTime=2011-09-07T21:42:31.8297096Z System.Net Verbose: 0 :
> [0412] Exiting HttpWebRequest#33574638::GetResponse() ->
> HttpWebResponse#43495525
> DateTime=2011-09-07T21:42:31.8297096Z
No hay solución correcta
Otros consejos
Finalmente encontró la causa raíz. Aquí está:
Durante la conexión SSL, se invoca Windows Update para actualizar los certificados raíz. Esto necesita conexión a Internet. Si la máquina está conectada a Internet, no se verá ningún retraso. Si la máquina no está conectada a Internet, se observa un retraso de 15 segundos porque ese es el valor de tiempo de espera predeterminado para la recuperación de red de los certificados raíz actualizados.
Esto es según el diseño y no es un error según el siguiente artículo de KB de Microsoft.http://support.microsoft.com/kb/317541
Encontré un problema similar con un servidor sin acceso a Internet. La solución era deshabilitar las actualizaciones automáticas de certificado de raíz y reducir el tiempo de espera para la lista CRL a un segundo.
Para hacer esto.
Iniciar gpedit.msc -> Política informática local -> Configuración de la computadora -> plantillas administrativas -> Sistema -> Gestión de comunicación en Internet -> Configuración de comunicación de Internet -> Apague la actualización automática del certificado raíz = habilitado
Y
Iniciar gpedit.msc -> Política informática local -> Configuración de la computadora -> Configuración de Windows -> Configuración de seguridad -> Política de clave pública -> ruta de validación de ruta de certificado. Seleccione la pestaña "Recuperación de red" y habilite la "Defina estas configuraciones de políticas". Deseleccionar la "raíz de actualización automática ...". Y lo más importante establece los valores de tiempo de espera en 1.
El retraso es visible en los registros de red ...
DateTime=2011-09-07T21:42:16.7696885Z System.Net Information: 0 :0412] InitializeCurityContext (credencial = system.net.safefreeCredential_security, context = 4b0cd8: 12d34d0, targetName = 172.16.2.142, infacts = replayDetect, secuencedetect, confidencialidad, Allocatememory, inicial-initomualualCedvalidation) DetEtetTeMe = 2011-2016. .NET Información: 0: [0412] InitializeDeCurityContext (en el conteo de buffers = 2, longitud de buffer = 0, código devuelto = OK). DateTime = 2011-09-07T21: 42: 16.7696885z System.net Información: 0: [0412] Certificado remoto: [Versión] V3
a esto:
DateTime=2011-09-07T21:42:31.7897095Z System.Net Information: 0 :0412] SecureChannel#46104728 - Msmatch de nombre del certificado. DateTime = 2011-09-07T21: 42: 31.7897095Z System.net Información: 0: [0412] SecureChannel#46104728-Una cadena de certificados procesada, pero termina en un certificado raíz que no confía en el proveedor de fideicomiso.
DateTime=2011-09-07T21:42:31.7897095Z System.Net Information: 0 :0412] SecureChannel#46104728 - El usuario verificó el certificado remoto como válido.**
¿Es posible que en la cuenta NetworkService, su configuración proxy, etc., no esté configurada correctamente, por lo que Schannel no puede obtener la lista de revocación del certificado y hacer otras cosas (como caminar por la cadena de certificado de raíz) para validar el certificado rápidamente?
Cuando se ejecute como servicio de red, haga un olfateo de red con Wireshark. Eso te mostrará lo que está sucediendo. Por supuesto, será Gibberish debido a SSL, pero al menos debe poder ver solicitudes HTTP de texto sin formato para el CRL y los certificados raíz.
