Hi, Eblyn
Thank you very much for help. I found problem.
Server with oracle has multiple records in DNS/hosts. One of admins installed DP protector using hostname1. Backup administrator imported server to DP with hostname2 and try to make backup. Logical it is ok, all communications are perfect, it working with file server backup, but not with Oracle intgration.
Steps for resolving:
1. delete client which was installed automatically
2. delete imported client (in windows C:\ProgramData\Omniback\Config\Server\Cell delete record from file)
3. re-add client
Eblyn, thank you
Best regards,
Victor