Hi,
It seems the latest update (v9.13.8) has changed the name of the aspx file it calls when testing an endpoint. But the new file is not inlcuded in the download package. So it is not possible to test endpoints.
The resource cannot be found.
Description: HTTP 404. The resource you are looking for (or one of its dependencies) could have been removed, had its name changed, or is temporarily unavailable. Please review the following URL and make sure that it is spelled correctly.
Requested URL: /Admin/Module/IntegrationV2/EndpointManagement/TestTool.aspx
It seems the old filename was "TestEndpoint.aspx"
Regards, Jon.