Can't add domain oputils.

Can't add domain oputils.

Hello. I can not add AD Domain to OpUtils. The domain controller is available, the Administrator account is entered correctly, but when you add the domain, nothing happens, only the interface OpUtils ceases to be available for one minute. Where can I see the error in the logs?
With respect and hope for the advice.

P.S.:  Of course remote administration on the domain controller in gpedit I turned

P.P.S.: ver  80011 trial on Windows 7 Ultimate.  testing before buy.

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