Devices Shows SNMP Contact Lost (Down) but able to Manage and Ping in XMC

[Gerald_Nuque]

Hi,

We've installed a trial version of XMC and added 12 units 210-24p switches. The ten switches are working smoothly while two switches are showing "Device Down". We tried to remove and re-add them, the status changed from red to orange. We can manage and ping them but it still shows SNMP Contact Lost and triggering "Device Down" Alarm.

The SNMP configuration on all of the twelve switches are the same so I think there shouldn't be issue knowing the other switches are working fine.

What could be the cause of this alarm?

Hope you guys can help me with this.

Thanks in advance!

[Ariyakudi_Srini]

Hi Gerald,

I encountered similar issue one time and the cause was identified to be the IP address used by the switch for management purpose had changed causing the "SNMP Contact Lost" at Netsight.

Regards,
Muthuraman

[Gerald_Nuque]

Hi Ariyaduki,

Thank you this information. We will try this and see if this will resolve the concern.