I'm trying to set up my new HP Photosmart C7280 Printer using Integrated wireless WLAN 802.11, but for some reason the printer cannot connect to the network. I printed off a diagnostics summary, and it recommends to check to see if MAC address filtering is being used with the router. So I went and checked my D-Link Networks Filter, and MAC filtering is set to OFF. So then I thought that maybe the printer just isn't receiving the signal, so I moved it right next to my router. The printer sees the network, but it just won't connect. Any ideas?