Can't connect to new Nucleus - app keeps shutting down

[Robert_F]

@Aaron_With, Roon 2.0 requires both the Roon Core and Remotes to be on the same build version of software to connect. There is a high likelihood you need to update the RoonOS and Roon Server software on your new Nucleus. Please see @Suedkiez’s guidance in this thread and many others:

Unable to Connect Roon Remote to Nucleus

There is a section there on the Nucleus web page for Roon Server Software with a version number and build number. What are the numbers? If it does not say “version 2.0 (build 1234)” but a (much) lower build number (1143 or something like this is usually the case for a new Nucleus), click the Reinstall button in the other section for Operating System. This is a completely safe operation that will both reinstall and (if necessary) update the operating system and trigger an update of the Roon Ser…

You will need to load the Nucleus’ WebUI information into a browser by typing the IP address of the Nucleus, or typing http://nucleus or http://nucleus.local, in a browser to check on the versions of RoonOS and Roon Server on your Nucleus.