HttpClient TimeOut/Cancelled exception

Question

When I post data Timeout/Cancelled exception is thrown (in Cent Os 7, server nginx) but it is perfectly fine when run on windows.

Is there a workaround for this? It works fine when I call api within same application.

Here is my complete error:

System.OperationCanceledException: The operation was canceled.
at System.Net.Http.HttpClient.HandleFinishSendAsyncError(Exception e, CancellationTokenSource cts)
at System.Net.Http.HttpClient.FinishSendAsyncBuffered(Task`1 sendTask, HttpRequestMessage request, CancellationTokenSource cts, Boolean disposeCts)
at CardApp.Repository.Notifer.FCMSendNotification(NotificationRequest notification, String To) in C:\GitHub\CardApp\CardApp\Repository\Notifer.cs:line 59

Update: Problem is when we are posting to https enabled apis.. Post request to http works fine.. It is because of client side encryption problem..

Answer 1

It happened because server was unable to ping the url. I had it fixed after contacting server people. I got to know about it after posting a curl..