I recently upgraded a site and after the upgrade the IPs to the router and layer 3 switch were swapped. More specifically, before the upgrade IP 192.168.xx.2 used to belong to the router and ..xx.1 was the switch. After the upgrade they IPs were swapped and one of the host name was updated. However, since the upgrade Orion still thinks its managing one device while it is actually the other. When I look at the managed nodes list and expand the router it shows the interfaces belonging to the switch. Get this thought, if I do “List Resources” it shows correct properties. Solarwinds TAC suggested I reboot the devices to correct this, but that did not do the trick.