Connecting Nucleus to Peachtree nova 300 with USB

Obviously, it was my intent to run nucleus as core, but locating it to act as such has become the issue. I will take a fresh look at the network configuration and then try to reboot. Hopefully this will locate the nucleus. Thanks for input.

Disable the Mac as a core. If the Nucleus is new it will need to update and it doesn’t always do so as gracefully as we would like from new. Once fully updated it should present itself to your chosen remote.

I disabled Mac as core, rebooted Nucleus, connected Nucleus to Mac via USB (just to limit problems) and then rebooted Roon App. Still unable to locate Nucleus when searching for core.

Another point. You need to have the peachtree set to the correct USB as the active source, or, it will not be seen.

Hello @Michael_Mosby,

When you disconnect the Peachtree Nova 300 from the Nucleus and then reboot the unit, are you able to see the HDMI zone in the Settings > Audio screen?


Unfortunately, when I have disabled my macbook as the core, I am unable to locate my Nucleus when searching for the core in Roon app so I’m unable to see any zones. I have plugged the Nucleus into my router directly, and still it doesn’t locate, it was on DLAN connection before. I am thinking I may need to use macbook as core again to run diagnostics on nucleus (if that’s a possibility).

Hello @Michael_Mosby,

Running your MacBook as the core should allow you to see the Nucleus zone if it is running.


Hi @Michael_Mosby,

I would also check to make sure that Roon and RAATServer are allowed past your Mac firewall, you can use these instructions from Apple to check this aspect.

I would also make sure that any other antivirus or firewall apps on the Mac are not interfering with your ability to connect to the Nucleus, I have seen McAFee / Norton / Little Snitch cause similar issues in the past.

If the Nucleus is not showing up as the Core, and you have made sure it is powered on and has an IP address, it is likely a firewall somewhere blocking the connection.

I really appreciate everyone’s input, but no matter what I do, I cannot locate the Nucleus. I have dismantled my entire network, to the point it is just my Macbook, a router, and the Nucleus and still no luck. I have checked firewall on Macbook and made sure all Roon apps have permission. I am beginning to believe I may have a lemon here. Is there any means to “reset” the Nucleus somehow even if I can’t locate it? If not, what’s next?

Hi @Michael_Mosby,

Can you please try accessing the Nucleus Web UI and post a screenshot of what you see there?

Also, just to confirm, you have pressed the power button to power the Nucleus on and there is a dim light illuminating from the power area? Are the Ethernet lights on the back blinking?

Once I launch the Roon app (and I have uninstalled and downloaded and reinstalled this) This is waht I get when I am searching for Roon devices. The power button is illuminated and the ethernet port has two green LEDs when facing the rear of the Nucleus the right one is blinking.

Hi @Michael_Mosby,

Can you please connect the Nucleus’ HDMI output to a Monitor or a TV and post a screenshot of what it shows? It should display a BIOS page similar to the following:

Note: A TV may truncate the text due to Overscan so I highly suggest connecting it to a monitor if possible.

I’ve searched the listed IP address in my browser and nothing loads, also, I get no ping response from this IP

Hi @Michael_Mosby,

It’s fairly atypical to see a 192.168.11.XXX address, can you confirm that your Macbook is using the same subnet range? If you open the Network Dialog it should tell you the current IP address of your Macbook.

Has this Nucleus been previously set to static IP? Does rebooting it change anything?

@Michael_Mosby -
Yes, that looks like a static IP issue.
No worries, I will private message you next steps.

Would be interested to see a progress report once you get it working.

Hi Tom, and thanks for the follow up. It appears that it was an issue with a static IP address I assigned to the Nucleus during setup. I was able to reset the network to its original settings and it was immediately recognizable. I’m in the process of my initial setup and assigning storage folders and am certain I will be a frequent visitor to this forum. You guys have been really helpful!

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3 posts were split to a new topic: Peachtree Amps - Nova 300 and 150

Hi @Michael_Mosby,

Glad to hear that you’re up and running since resetting those network settings and happy to help!

Hope you enjoy the Nucleus and if you have any other questions feel free to reach out to the Community, take care!

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