As of RPA Central 2.1.0 and later, we've added support to allow RPA Central to use a proxy server. The reason for this is that many on-premises systems are blocked from making calls to the internet, forcing those calls through a proxy server for security reasons. Use the following instructions to allow RPA Central to use a proxy server instead of trying to call directly to the RPA API in Azure (https://wus-api-rpa.nintex.io/ ).
1. Navigate to the RPA Central folder, usually located at: C:\Program Files (x86)\Nintex\RPACentral\RPACentral.
2. Open the sharedServiceSettings.xml file using a text editor. Note that you must have Administrator rights to save your changes to this file. If you need to, open Notepad as Administrator.
3. In the ProxyServerSettings node, populate the Address and BypassProxyOnLocal nodes.
4. Restart RPA Central Service from Services.