Denon AVR 2100W...My problem is I am able to stream about 3 or 4 songs and then I lose the connection...Is this my receiver or is it the wifi?
I think only way to know for sure is to try another AVR.
I've only streamed from my Phone and iPad to my AVR and AVP.
My Internet is the AT&T Gigabit Fiberoptic using the AT&T Modem.
When I had the Denon AVP-A1HDCI, AVR-5308CI, and X3100, I also had similar issues - WiFi streaming would work for a few songs, then it would stop steaming. This happened all the time.
I've never had any streaming issues with my Yamaha CX-A5100 or RX-A3080. It has been 100% reliable.
But nothing is guaranteed. So the only way to know for sure is to try out another AVR (like Yamaha). If you still have the same issues with the new AVR, then it's your Internet, Network, Modem, etc.