As suggested, I opened a ticket.
The problem has been solved thanks to Michel.
My understanding was that the IP address was set to a static address in the configuration file /etc/rc.conf. I suspect it had been carried over from a setting way back in an early version of ISY when you still could set fixed network setting. I had built my system back on ISY version 3.x and just kept upgrading then moved it to the Polisy. More resent versions are locked to DHCP and do not allow you to change network setting within the ISY. The config file held the network setting from the original installation.
The fix was to SSH into Polisy then edit the /etc/rc.conf file as follows:
find:
ifconfig_igb0="inet 192.168.1.56 netmask 255.255.255.0"
replace with:
ifconfig_igb0="DHCP"
remove: defaultrouter="192.168.1.1"
Then do:
sudo service netif restart
I have a Marantz receiver. I believe the commands are the same for a Denon. This is how I have my volume control set up.
I have multiple ways to adjust my volume. One way is to just increase the volume with a voice command, or to decrease volume with a voice command. another way I can adjust the volume is to specify a specific value. All of these are done through the I SY portal to send network resource (NR) commands to my Marantz.
to send a specific volume value I have set up a number of variables,
Integer variables:
State variables:
If the state variable Vol.Trigger changes, I first test to make sure it is a value within acceptable range (Min and Max fixed variable settings). Then I copy the Trigger value to the Current Vol value Int Variable and reset the Trigger back to zero before proceeding. Finally I send the Current Vol value to the Marantz by inserting it int a NR command.
Network Resource command to tell Marantz to set vol to the value in the specified variable {var.1.12}. (1 is the variable type - integer, 12 is the variable number).
My Alexa voice command is "Set Marantz Volume to 55" and the volume changes to that or any other number I use.
I wrote this a num,ber of years ago so I hope I haven't missed anything. I hope this helps.
