I am using the Roon Nucleus as Core and have multiple Apple devices as Remote. Since I switched off and back on the Nucleus some days ago, the Roon Core can no longer be found,
The Nucleus is powered on, white, orange and green LED are all on. I have checked the cables, and made zero changes to Operating Systems on my Apple devises, Wifi and Switch. I have tried connecting to Roon Web, but ‚Configure Roon OS devices on your Network‘ also keeps searching without any success.
I am having the same problem on my Nucleus+. After the most recent update I could not find the core. Waited a number of hours and then power cycled, hard shut down, and also hooked up a working HDMI cable and get no signal. The power LED is white and the network port LEDs do light up and flicker after it’s been ‘booting’ a while. In the list of connected devices on my switch I don’t see its MAC address or activity on it’s port.
I am using an Apple iPad and also an iPhone as Roon Remote, accessing my Wifi which is from an Apple Airport Extreme (in Bridge mode). The Airport Extreme is connected using an ethernet cable with the Router provided by the company where I have a DSL subscription (Wingo in Switzerland).
The Roon Nucleus is connected using an ethernet cable with the same Router.
I have other Switches in my home network, but have deliberately made sure both the Airport Extreme and the Nucleus connect straight with the router.
Following up on this thread, have you tried resetting the network settings on your Nucleus? That should help if not. This can be done by connecting the Nucleus HDMI output and a USB keyboard and typing ENTERresetnetworkENTER.
To confirm, you’ve properly flashed the new OS onto a USB drive? With that, did you hold down the F10 key on your connected keyboard right after turning on the Nucleus? Continue to hold the F10 key down until you appear at a menu that asks you which device you’d like to boot from.
If the above doesn’t help, and you cannot reach the webUI, then you may need to send in the core for repair via an RMA. When did you purchase the device?
I have flashed the new OS onto the USB drive with Ether. Only observation here is that the file ending is .img and not .img.gz.
F10 to then select the USB drive to boot also works. I then get the above screens. Are these screens the correct ones, or do you expect anything else displayed ?
Because I just rebooted all the devices and also the router / internet, double checked again all IP numbers and redid the whole process: same outcome, it cannot find the Roon core.
I did buy it on February 5th 2021.