LoadRunner 11.5 Fix Running TruClient AJAX IE Over A Firewall

One of our customers experienced issues when trying to run TruClient IE over a firewall using the LoadRunner MI Listener component. To narrow the issue down, they tried running other scripts based on different protocols, which worked fine. It was specific to the TruClient protocol. The TruClient script would time out after several minutes. The only error was “initialization failed: reason – timeout”.  To correct the issue, they implemented the following steps:

  1. Modify <LG>\dat\mdrv\mdrv_webIE.datfile. Add the following lines:
  2. Modify <LG>\dat\mdrv\mdrv_webIENDP.datfile. Add the following lines:
  3.  Create a copy of <LG>\merc_asl\web2ui.asl file. Rename it to “webIE.asl“.

Hopefully this fix will help someone else who is experiencing the same issue. This should work for both Performance Center and LoadRunner.

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Scott Moore

About Scott Moore (153 articles)

With over 20 years of IT experience with various platforms and technologies, Scott has tested some of the largest applications and infrastructures in the world. He is a Certified Instructor and Certified Product Consultant in HP’s LoadRunner and Performance Center products. He currently holds HP certifications for ASE, ASC, and CI. A thought leader in the APM space, he speaks regularly at IT conferences and events