connection issue to azure cognitive search from asp.net mvc website

Question

I have a asp.net mvc website developed in .NET framework 4.7. getting connection issue from hosted website. can you please help

An error occurred while sending the request. ---> System.Net.WebException: The underlying connection was closed: An unexpected error occurred on a send. ---> System.IO.IOException: Unable to read data from the transport connection: An existing connection was forcibly closed by the remote host. ---> System.Net.Sockets.SocketException: An existing connection was forcibly closed by the remote host

We set out to bring the benefits of event-driven architectures and the productivity of functions to Kubernetes. The result is KEDA – Kubernetes-based event-driven autoscaling. — Sajeetharan, Apr 14 '20 at 07:39

Manish · Answer 1 · 2020-04-14T07:33:37.877

2

I usually face this error while debugging, but if you deploy this it will disappear.
For debugging purpose, add following lines before calling external services.
ServicePointManager.SecurityProtocol = SecurityProtocolType.Tls12 | SecurityProtocolType.Tls11 | SecurityProtocolType.Tls;

edited Apr 14 '20 at 07:33

answered Apr 14 '20 at 07:28

Manish

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Hi Manish, I am facing this issue after deployment..it works fine in debugging mode..thanks for your reply – Abdul Jameel Apr 14 '20 at 07:38
where is it hosted? might be some TLS issue. – Manish Apr 14 '20 at 07:40
Yes..hosted on a third party host provider – Abdul Jameel Apr 14 '20 at 07:47
I get the same error after hosting the website on azure app service ( test environment) – Abdul Jameel Apr 14 '20 at 07:49
have you tried ServicePointManager.SecurityProtocol option? add those line and deploy. found similar thing here https://stackoverflow.com/questions/22627977/the-underlying-connection-was-closed-an-unexpected-error-occurred-on-a-send – Manish Apr 14 '20 at 07:57

connection issue to azure cognitive search from asp.net mvc website

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