I have Windows Authentication on the IIS of sitecore site (for limited external access). Coveo is running remotely on another server. When trying to run Coveo diagnostic tool, I see the 401 error in Coveo Security Service.
System.Net.WebException: The remote server returned an error: (401) Unauthorized. at System.Net.HttpWebRequest.GetResponse() at Coveo.SearchProvider.Applications.StateVerifier.<>c__DisplayClass16.<GetWebServiceState>b__15() at Coveo.SearchProvider.Applications.BaseVerifier.VerifyComponent(Func`1 p_VerifyMethod, String p_ComponentName)
I've tried to follow this other post on how to configure this but I am running into same issue. The CES service is running on an AD account (domain/username) that has access to sitecore site's IIS. I am able to login using the same AD account.
Any ideas what else I should be configuring to make this work?