There are two types of 401 errors that you may encounter when working with the K2 Workspace. Since the error type generated depends on the circumstances, two sets of troubleshooting instructions are provided to resolve the two different error types.
The two types are:
The cause for the error in this situation is that the Internet Information Service(IIS) is not authenticating the credentials provided. This can be because the credentials (username, password) are incorrect, or because the authentication method (basic, NTLM, Kerberos) is incorrect. Follow the steps below to first confirm that Internet Explorer (IE) is configured correctly and then confirm that IIS is configured correctly:
The cause in this situation is that the workspace application is unable to pass the user credentials to the web service that K2.net uses for reporting. Setting up Kerberos authentication will resolve the issue. In a single server environment Kerberos should not be required. The steps below attempt to help resolve the issue without setting up Kerberos but if after following all the steps you continue to get the error you might want to look into the possibility of setting up Kerberos. (see KB000123 for more information)