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fuel9 / DisplayMonkey

Display Monkey digital signage solution
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Outlook calendar data not being pulled #210

Open WilliamVissenaeken opened 2 years ago

WilliamVissenaeken commented 2 years ago

Since a few days we have issues getting Outlook calendar data pulled. When verifying the Microsoft Exchange Account settings, we suddenly get following error upon save: "The request failed. The underlying connection was closed: An unexpected error occurred in a send." image

The application is being hosted on a WS2016 1607 environment with .NET 4.5.

Should this have something to do with TLS? Fast research pointed me to https://docs.microsoft.com/en-us/answers/questions/362284/error-the-underlying-connection-was-closed-an-unex.html and to https://stackoverflow.com/questions/28286086/default-securityprotocol-in-net-4-5 but not sure.

Please advise. Regards, W.

WilliamVissenaeken commented 2 years ago

Problem apparently due to TLS issue. (Temporary) Solution: https://stackoverflow.com/a/39244272.