I wish they would fix this. It shows the MAC address as the client name (I don't want to have to edit the darn names, that is so stupid) and also clients that are DHCP are shown as STATIC (just like the original post pointed out). I also discovered that I can get the client list to stop working sometimes when I plug an un-managed switch into the router. Unplugging it and replugging it gets the list to start working again. Go figure.
I wish they would fix these bugs as the client list is something I do rely on to see what is connected to the network and when it isn't accurate... it cannot be trusted.
This is still broken, but is slightly better in 20467.