We are experiencing quite a few interface unknown's for multiple devices and device types. The last part of each of the unknown message states "Interface Polling stopped. Could not remap interface. Check ifDescription change." The majority of these alerts are from Windows 2003 and 2008 r2 servers Packet Scheduler Miniports and VMware NIC's. There are only a few alerts related to a Cisco router/switch. There haven't been changes to our SNMP configuration, nor have any of the devices changed. I have tried rediscovering the device and the NIC in question but nothing changes. We haven't restarted the SNMP services on the servers b/c we don't want to chance hanging up the server and forcing a reboot. Has anyone else had this issue or have any suggestions on how to fix it? Thanks in advance for any help you all can give. PJ