We are seeing this exception:

A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond

when submitting REST requests using System.Net.WebRequest to a third party API The owner of the API believes the API is OK, and has suggested that there is a transient connectivity problem.

Is that possible with this error, or is this error specific to a failure on the reported host?

We are using the domain name when submitting the requests, and the failure is being reported on an IP belonging to the domain owner

  • are you using ssl to encrypt the flow? – user1700494 Nov 9 '17 at 8:35
  • @user1700494 We are using TLS – Matthew Evans Nov 9 '17 at 9:07

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