We have upgraded our server to last version (wonderful job I must say) but it seems that it lacks a feature for us.
In the upgraded web page the “last seen” column seems only to appear in device section and not when you search for the device (like long ago)
Is this intentional? It is very hard to control devices if they just send. We have a 2700 end node net and some of them seems to hang (for another reasons) and now seems imposible to find them and last seen column together