Register Kaa endpoint to Kaa cluster

Question

I have a question about Kaa-Iot Platform, wish your help.

I'm trying initiate a Kaa client endpoint to Kaa cluster. Kaa application of client has Internal Credentials service.

Despite that I provisioned credentials for endpoint Key Hash of kaa client using [Kaa API](http://kaaproject.github.io/kaa/docs/v0.10.0/Programming-guide/Server-REST-APIs/#!/Device_management/provisionCredentials), authentication of Kaa client to Kaa cluster failed.

Kaa client authentication failed image

I followed the documentation and I completed all steps to get authentication for a Kaa client and I have no idea why this is failing.

Please give me some guidance. Thank you.