The value you are talking about connectionTimeout should be set in the applicationhost.config file. This file was not found as part of your project, but is part of your azure site. If you want to view the configuration settings in this file, you can go to the kudo service for your site, which can be accessed by following the instructions here:
https://github.com/projectkudu/kudu/wiki/Accessing-the-kudu- service
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