OK, thanks for the info, especially regarding the potential to implement EQ curve modifications on the 3808, I must have misunderstood.
Moved the cable modem/router so I could plug directly into the ethernet port, no improvement, called Denon and they state I need to disable upnp in the router, att states there is no such feature in the router, am unable to find any such feature in the router's menu of settings, perhaps the two units are incompatible?
Another day, another day of troubleshooting . . .
