Inventory uses snmp to communicate to device. Please check you device has snmp configured and LMS has correct SNMP RO credentials added to it.
Please try to do a manual snmpwalk from LMS server (using device centre > tools) and see the walk succeeds.
Then again try to run the inventory from LMS server on this perticular device and if it fails, share the failure result/screenshot etc details. NMSROOT/log/ic_server.log as well.
-Thanks
-Thanks
Vinod
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