Airplay inop on AVR-X3400H after firmware update
I have an issue with Airplay not working on my AVR-X3400H after a firmware update. I would welcome inputs from others who have seen the same issue and might have a solution. Thank you.
I purchased an AVR-X3400H this weekend. Functionality, including Airplay, was as advertised after initial setup. After doing a firmware update, however, I was not able to connect any device (2x iOS devices, computer running iTunes) to the receiver. Following extensive troubleshooting (see below) with the firmware update installed, I reset the firmware to the factory settings and was able to setup Airplay again without issue. I did a firmware update a second time, after which Airplay again failed to work. After a second firmware reset, Airplay once again worked fine.
With the firmware update installed, I can connect the receiver to my home network (using "Wi-fi scan" setup or a wired connection) and stream internet radio. Also, I can see the receiver on my network and (intermittently) as an Airplay device, but I cannot connect to the receiver ("cannot connect" error when selected). In addition, if I try to set up the network connection using an iOS device, the receiver appears under "Set up a new air play speaker" and is selectable, but the setup process times out when trying to connect the receiver to my network ("an unexpected error occurred. try again." is the error message on the iOS device). In short, the receiver seems to be blocking connections.
All devices have the latest firmware & software and I have no other issues on my network, including no Airplay issues with other devices. I checked that the relevant ports were available on my network. I tried multiple AVR network and soft resets, power cycles, DHCP cycles, etc. I also troubleshot with Apple for a few hours yesterday. Denon customer support was not available yesterday, nor today. The only solution I have found is to revert to the factory firmware setting.