Denon AVC-3806 and itachIP2SL Problems

Liking the roomie so far, I decided to control my Denon over serial but I can’t get it to respond. I have changed the baud rate to 9600 but no dice. here are the iTachIP2SL settings and I confirmed I am useing a pass through rather then null serial cable:
Serial Parameters

Multiple Ports
Disabled Enabled
Baud Rate
9600
Flow Control
None
Stop Bits
1
Parity
None
Data Bits
8
Frame Errors
"0"
Parity Errors
"0"
Overflow Errors
"0"

Been working at this over the weekend. The serial connection is fine. I can read status from it via Roomie or from iTest. However I can only get a few commands to work such as PW?. PWSTANDBY does not return anything.

 

Are you trying to write a custom command set? The codes for Denon serial are built into Roomie so there is no need to use a custom set.

Using he Serial AVR Zone 1 support I get the feedback such as the volume settings, but non of the commands have any affect. Just like the responses in iTest.

Also have a ticket into Denon support to see if they have any ideas.