IIS I/O operation error (Status 500)

iiswindows-server-2008-r2

I have web server running on Windows Server 2008 R2 SP1.
There is IIS 7.5

I deployed API on this server. It's working fine in all browsers, but when I try to call it from mobile application every time i recieve timeout error. For API calls I use https and on server installed valid certificate.

I switched on failed request tracing and there was following error:

ModuleName    IIS Web Core    
Notification    1     
HttpStatus    500     
HttpReason    Internal Server Error     
HttpSubStatus    0     
ErrorCode    2147943395     
ConfigExceptionInfo         
Notification    BEGIN_REQUEST 
ErrorCode    The I/O operation has been aborted because of either a thread exit or an application request. (0x800703e3)

Does anyone know what can cause this?
I'm 100% sure that mobile app requests are correct. I believe there is something wrong with server.

Best Answer

This is most probably a certificate issue or Windows 2008 R2 Bug.

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