I will double check that the Linksys/WRT is connected correctly, but since the OTHER router is the only one handing out IP addresses, I assumed the camera would ONLY be able to connect to it (the DIR-882). I'll check again, but am not sure, if I'm connected as you showed, how to be SURE that the DCS-5009 is connecting to the DIR-882.
I did just notice that, for some reason, I had the Mac address of the DCS-5009 as "allowed" through the MAC filter on the Linksys router. I removed it, rebooted the camera. Still not connecting when I am off wifi.
I'll check the other and update when I can. Thanks.