ErrorNetworkError - how to fix it?
Description of error code "ErrorNetworkError"
Domain: Exchange
Code: ErrorNetworkError
Type: Configuration error (You are often able to resolve this type of error.)
Description: A network error occurred. The Exchange server could not be found, or the integration was actively refused.
Possible solution: Check that the EWS URL is specified correctly.
Alternatively, check that integration is not blocked by a firewall or another gateway.