"No DNS domain configured" when I join AD domain

I have an issue to join Active Directory with my DNS. Someone can help me with this issue. I checked my /etc/hostsfile and everything is fine.

root@terminal:~# sudo net ads join -k

Result:

Using short domain name -- COPICOM
Joined 'TERMINAL' to dns domain 'copicom.local'
No DNS domain configured for terminal. Unable to perform DNS Update.
DNS update failed: NT_STATUS_INVALID_PARAMETER
root@terminal:~# net ads join

Result:

Failed to join domain: failed to lookup DC info for domain 'COPICOM.LOCAL' over rpc: The attempted logon is invalid. This is either due to a bad username or authentication information.

Content of /etc/hosts :

127.0.0.1 localhost
127.0.1.1 fileserver
10.128.35.2 copserv.copicom.local copserv

Thanks for support.

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