Hi there
C8 Pro and C8 Hubs Running 2.3.9.200
I've had a long standing issue which has taken place across many releases and across multiple Hubs. For a while I thought this was caused by a problem in my network and with other things that had greater priority I havent done much to try to fix it.
One thing I noticed today was that both the web interface and Home Assistant can operate the AVR with no issues. This points towards a more Hubitat problem rather than a LAN one?
Turning the AVR on and changing the volume both work fine.
However when using Hubitat I get no response and errors in the logs
Here are the logs from two different Hubs running on my LAN (the 3rd Hub also doesnt work)
The AVR is configured with a router assigned and reserved IP address (192.168.86.101)
My process for adding the AVR is to go to add device, add virtual device, add the 'Denon AVR' from the list and then type in the IP address above.
Any help or suggestions on things to try to diagnose this further would be really appreciated
I don't pretend to understand this at all. But, does your Denon use telnet commands for control? Mike Maxwell is helping me get my Russound integrated into HE. Since upgrading to C8 Pro, I have frequent disconnects with my current setup that USED to work most of the time (with the C8). I suspect a telnet problem or something similar. Mike thinks something else. Just thinking out loud here.
@user4286 I haven't used the Home Assistant integration but do you know if it leverages a Telnet integration? If yes there is your problem. Denon and Marantz receivers only allow a single telnet connection at a time unlike other brands - My son's Onkyo allows 6 I believe for example. So if your HA is communicating with it via telnet that would prevent HE from connecting and vice versa.
My advice would choose one and then expose that device to the other if you really need to control it from both automation platforms.
To test this unplug your Denon receiver from the wall for 30 seconds and plug back in. Now go to your HE device and click initialize and it should now connect since the HA connection is now broken. Then you will likely get connection errors in HA.
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I've just deleted all instances of all connections/devices on all hubs and platforms and re created just one.
Works perfectly!
Thanks 
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I just tried this with my X4400H and it still not connecting....
dev:69492025-01-14 11:05:46.294 AM
error
telnet connect error:connect timed out
dev:69492025-01-14 11:05:16.266 AM
info
retrys ramaining:4, next connect attempt in 40 seconds
dev:69492025-01-14 11:05:16.263 AM
error
telnet connect error:connect timed out
dev:69492025-01-14 11:05:06.251 AM
debug
initialize...
UPDATE: now fixed. It had to do with my LAN switch setup. Now all is working!
