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The event viewer repeatedly displays warning 1088

Known errors 9.2-12.x
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Zuletzt aktualisiert am:05.09.2022

Behaviour:

The event viewer repeatedly shows the following message:

---------------
Gateway Role 1088:
Could not secure an inbound connection with the host 192.168.0.100:53627.
Die angegebenen Daten konnten nicht entschlüsselt werden
Error type:
System.ComponentModel.Win32Exception
Error number:2147500037
Program location:
---------------

As a result, an SChannel error will appear in the Windows applications event viewer. It may look like this:
---------------
SChannel 36887:
Es wurde eine schwerwiegende Warnung vom Remoteendpunkt empfangen. Die schwerwiegende Warnung hat folgenden für das TLS-Protokoll definierten Code: 51.
---------------

Please note that ID and code may differ.

Explanation:

Windows 2008 R2 and later does not support older, weak cipher suites, which are considered cracked. Therefore, a TLS connection is not established if the delivering server can only process these. As a result, the above-mentioned warnings and errors are logged. The delivering server must then perform a fallback to plain text. For this it is necessary that the delivering server establishes a new connection, since the old connection, where no TLS connection could be established, must be closed.

Tags:
  • 9.2-12.x
06.12.2018/by Stefan Feist

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