Error "The underlying connection was closed. An unexpected error occurred on a receive"

Document created by butlerj Support on Dec 18, 2018
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ISSUE
When running a web request in a workflow in SharePoint 2016, the request might fail and the following error might occur:

The underlying connection was closed: An unexpected error occurred on a receive.
ERROR CODE
RESOLUTION
  1. Open IIS.
  2. Open the configuration editor for each site running Nintex workflows.
  3. Open ServicePointManager and set expect100Continue to False.
ADDITIONAL INFORMATION
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