You can save your settings by using the Web Interface (it's in the manual).
-Go to the Network Menu setup option on the GUI.
-Set the Denon for DHCP.
-Go to Network Information and see if your Denon is getting an IP address from the router.
-If you have an IP address assigned by the router you are home free.
-See page 20 for set-up,
-See page 24 for GUI option for firmware update under Manual Setup in the lower right corner.
Said another way - You just type the IP address of the Denon into your browser and the web interface will open To get the IP, go to your router or the Denon menu under Network Info.
Note: If you plug your 3808 into a router, do NOT have UPnP enabled on the router. It can screw every device in the network until you unplug the receiver and power cycle the router.
terzaghi, this stuff is covered in great detail in that AVS 3808 owners thread you have been posting in.
Meanwhile, I got my 3808 last week, but I haven't hooked it up yet. I just received a powerline adapter ethernet kit from NewEgg (Linksys PLK200) to provide me with a hard wire network capability in the basement HT. I am waiting for my order from monoprice (some HDMI cables and some network patch cables)so I can hook it all up. I'm pretty excited about getting it all tied together.