i detect the device but i dont see values

i detect the device but i dont see values

hi,
i have installed Opmaneger on my computer and i connected the computer to a SNMP capable device.
on the browser, i can see that that 2 devices are actived but i dont see any values (Menory utilisation, Disk space .............) nothing.

i use the free version of the software and i dont have a license.

please help me i don�t know what to do





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