«

I'm getting this exception when trying to call external WS that
requires client side certs. It fails sporadically and not always -
Please see the below exception. This is urgent and need some immediate
assistance if possible, thanks.


The underlying connection was closed: An unexpected error occurred on
a receive. ---> System.IO.IOException: The decryption operation
failed, see inner exception. --->
System.ComponentModel.Win32Exception: The certificate chain was issued
by an authority that is not trusted
--- End of inner exception stack trace ---
at
System.Net.Security._SslStream.ProcessReadErrorCod e(SecurityStatus
errorCode, Byte[] buffer, Int32 offset, Int32 count,
AsyncProtocolRequest asyncRequest, Byte[] extraBuffer)
at System.Net.Security._SslStream.ProcessFrameBody(In t32 readBytes,
Byte[] buffer, Int32 offset, Int32 count, AsyncProtocolRequest
asyncRequest)
at System.Net.Security._SslStream.StartFrameBody(Int3 2 readBytes,
Byte[] buffer, Int32 offset, Int32 count, AsyncProtocolRequest
asyncRequest)
at System.Net.Security._SslStream.StartFrameHeader(By te[] buffer,
Int32 offset, Int32 count, AsyncProtocolRequest asyncRequest)
at System.Net.Security._SslStream.StartReading(Byte[] buffer, Int32
offset, Int32 count, AsyncProtocolRequest asyncRequest)
at System.Net.Security._SslStream.ProcessRead(Byte[] buffer, Int32
offset, Int32 count, AsyncProtocolRequest asyncRequest)
at System.Net.TlsStream.Read(Byte[] buffer, Int32 offset, Int32
size)
at System.Net.PooledStream.Read(Byte[] buffer, Int32 offset, Int32
size)
at System.Net.Connection.SyncRead(HttpWebRequest request, Boolean
userRetrievedStream, Boolean probeRead)
--- End of inner exception stack trace ---
at System.Net.HttpWebRequest.GetRequestStream()

"jigs" <> wrote in message
news:a939008c-592e-40e5-b5f9-...
> I'm getting this exception when trying to call external WS that
> requires client side certs. It fails sporadically and not always -
> Please see the below exception. This is urgent and need some immediate
> assistance if possible, thanks.
>
>
> The underlying connection was closed: An unexpected error occurred on
> a receive. ---> System.IO.IOException: The decryption operation
> failed, see inner exception. --->
> System.ComponentModel.Win32Exception: The certificate chain was issued
> by an authority that is not trusted

Have you considered the possibility that the exception is telling you the
truth?

Do you have more than one server hosting this web service? Is it possible
that some server involved in determining trust is not always available?
--
--------------------------------------------------------------------------------
John Saunders | MVP - Windows Server System - Connected System Developer

On Dec 17, 1:57 pm, "John Saunders [MVP]" <john.saunders at
trizetto.com> wrote:
> "jigs" <jigesh1...@gmail.com> wrote in message
>
> news:a939008c-592e-40e5-b5f9-...
>
> > The underlying connection was closed: An unexpected error occurred on
> > a receive. ---> System.IO.IOException: The decryption operation
> > failed, see inner exception. --->
> > System.ComponentModel.Win32Exception: The certificate chain was issued
> > by an authority that is not trusted
>
> Have you considered the possibility that the exception is telling you the
> truth?
>
> Do you have more than one server hosting this web service? Is it possible
> that some server involved in determining trust is not always available?
> --
> ---------------------------------------------------------------------------------
> John Saunders | MVP - Windows Server System - Connected System Developer

Yes. I've checked on all servers hosting this WS. All servers have
accurate certs installed in appropriate stores.

FYI - My WS is a client-side WS and tries to initiate a call to
another WS on the vendor's end.