Originally Posted by arik
Hello, 9 months ago I bought 2 pieces AVR 4520 for my house. The one is in my home cinema, the second is running in the living room. The living room AVR has networkproblems from the beginning. Almost every day, the device disappears from the network. "No Networkconnection" appears in the display then.
The setup is the same for both devices:
Network: "always on", Fixed IP address (no DHCP), in the living room 192 ........ 150, 192......149 in Home Cinema
The Home Cinema 4520 is functioning as it should. Internet radio is always available after a few seconds. The Denon app (iphone5) always finds the device.
The living room 4520 has, as mentioned, "No Networkconnection" almost every day. This happens sometimes during Internetradio- Playback. Sometimes it happens immediately after switching the device on. The only solution then is to take off the Power supply of the Living Room-4520. Then the AVR logs on again to the network and the internet radio works for some hours.
I have read the FAQ on the Denon Support site and have taken the recommended actions. I have performed a factory reset and a reset of the network card (switch on with the power button while up/down button is pushed). Both with no success. The AVR stays networkconnected only for short time, then it looses Networkconnection again.
To exclude a router or LAN cable trouble or generally a problem of my Homenetwork, I finally switched the devices (incl. their Ips). So I put the perfectly functioning home theater 4520 in the living room and the malfunctioning living room AVR into my home cinema. But also this action did not help. The living room 4520 still shows the same problem. The other remains functioning perfectly in the other networkplace.
I assume, that the networkboard (card) of my device is defective and should be replaced.
What do you think ? Anyone else having similar trouble with a 4520 ? Is it easy to change the networkcard by my self ?
I live in Greece. Since I bought the Device in the Netherlands, Denon Greece does not cover my warranty for this device. The Transportation costs to NL is more expensive that the Netboardcard itsself. That's why I'm considering a "do it your self" job.