First time a TGML graphic is opened after logging in it takes a long time for the graphic to load

Issue

The first time a TGML graphic is opened after logging in through Workstation it takes a long time (approximately 30 seconds) before the graphic is shown

Product Line

TAC Vista

Environment

Windows Domain
TAC Vista
.NET Framework

Cause

This is usually only an issue when the PC has either no or a bad internet connection or is located behind a proxy server.

The reason this is happening, is because an application using e.g. signed .NET Framework dll files will check for certificate revocation each time it's launched. That can only be done if the PC has internet connection. If the PC can't connect to Microsoft's server to get the newest list of revoked certificates, the application will appear to hang until a given timeout is reached. The default timeout is 35 (15+20) seconds.

For a deep explanation of certificate revocation check and the base of this article, read this article.

Resolution

There are two solutions that can be implemented. The first is mandatory and the second is optional. ...

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First time a TGML graphic is opened after logging in it takes a long time for the graphic to load

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