Network Monitor is not updating

Network Monitor is not updating

Dear professionals,
The network monitor is not updating in Oputils 6,
when i add an device it shows as up and monitoring status is running
i set monitor every 20 sec and nothing is changing
the last update time is kept on the first time i added the device
i tried to bring that device down and nothing changed and status still showing up in green

Please guide me if there is something wrong i am doing.

in addition i can't scan windows machines like in oputlis 5 that have windows credential tab to enter username and password
because i don't have active directory

your help is highly appreciated
Thank you in advance

















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