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

Answer 1

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;