[ovirt-users] Failed to check for available updates on host *** failed with message...

Hello there, I am getting this error in the ovirt hosted engine: 2017-09-06 16:45:56,160+01 ERROR [org.ovirt.engine.core.dal.dbbroker.auditloghandling.AuditLogDirector] (pool-7-thread-1) [4ff48065] EVENT_ID: HOST_AVAILABLE_UPDATES_FAILED(839), Correlation ID: null, Call Stack: null, Custom Event ID: -1, Message: *Failed to check for available updates on host host1.bajada.es <http://host1.bajada.es> with message 'SSH authentication to &#39;root(a)host1.bajada.es <root(a)host1.bajada.es&gt;&#39; failed. Please verify provided credentials. Make sure key is authorized at host'.* I am up and running: *oVirt Engine Version: 4.1.1.8-1.el7.centos*. I suppose that this error is related to SSH public and private keys. Am I right?¿ Thanks for all in advance Any help would be appreciated Manuel Luis Aznar