HTTP protocol error 401 Monitoring Apps or other app reloads fails with Kerberos Authentication in Qlik Sense Enterprise on Windows

[Anonymous]

If Kerberos Authentication is used in Qlik Sense then the following error can be observed:

Error: QVX_UNEXPECTED_END_OF_DATA: HTTP protocol error 401 (Unauthorized).

Kerberos Authentication is not supported with REST Connector. The only workaround is not to use Kerberos Authentication.

In addition, the License and Operation Monitoring Apps will not reload anymore if using Kerberos. When trying to Reload them, the following error is observed:

Error: QVX_UNEXPECTED_END_OF_DATA: HTTP protocol error 401 (Unauthorized):
'Negotiate' authentication schema provided by the web-service is not supported or your credentials are not valid.

The reload of monitoring apps fails if Kerberos Authentication is enabled. The Kerberos authentication is not currently supported by the REST connector.
 

Resolution

You have two options on how to address this. Either you swap to JWT Authentication for the Monitoring Apps or disable Kerberos entirely. 

To swap to JWT Authentication, see Qlik Sense: Modify REST connections for Monitoring Apps to use JWT authentication.

To disable Kerberos instead: 

1. In the Qlik Sense Management Console, open the Proxy (Central) and choose edit.
2. With the Ports Properties visible, disable Kerberos authentication - See Fig 1
   
   Fig 1

  

Environment:

Qlik Sense Enterprise on Windows 

[Sonja_Bauernfeind]

Hello @diagonjope 

Thank you for confirming!

I've clarified the article a little and hope that the new phrasing will prevent confusion in the future. And, thank you again! Your feedback and your raising this was very valuable.

All the best,
Sonja 

[diagonjope]

Thank you @Sonja_Bauernfeind to you and the rest of the Qlik Support team for all your timely responses to issues like this.  

Cheers,

++José