I guess ovirtmgmt is your management network (which is required), then engine tries to configure that on the host upon adding that. I assume that the engine failed in that for the reason that you should be able to find in the engine log.
Was ovirtmgmt network configured on the host prior adding it to the engine?
Could you please attach the log file?

Could you please tell what exact version are you using?

On Thu, Dec 8, 2016 at 2:37 AM, Mohmed Kasem <mohmedkasem@ymail.com> wrote:

Dear all
I have a problem in ovirt4.0 when I add host to engine i got erorr ( host does not comply with the cluster Default networks, the following networks are missing on host: 'ovirtmgmt)
I facing this problem only in ovirt4.0 any help please

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