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When a user makes integration calls (ex. to https://google.com), the system returns a "Connection timed out" error; however, when using the a!httpQuery("https://google.com") function in an expression rule, the connection is successful.
a!httpQuery("https://google.com")
This occurs because HTTP Proxy is enabled in the Admin Console, which is blocking the integration calls.
Go to the Admin Console and click on HTTP Proxy under the Integration section. Disable the HTTP Proxy by un-checking the box.
This article applies to all versions of Appian.
Last Reviewed: February 2020