Maybe try giving it a static IP address. While that shouldn't be necessary per se, sometimes it's just something specific to your network that causes the DHCP lease to expire, or reset.I am still having issues with my Pi 4b dropping wifi signal on occasion. So either it just doesn't have good range, mine is defective, or some other minor variable is off a bit. It really shouldn't have a problem where it's located as nothing else does.
I am using RopieeeXl and when I check in with it on my router it finds the device just fine. It seems that the Roon core just doesn't see or recognize it. But yes, the last time it was running, it had trouble keeping signal and then eventually dropped entirely and it still can't find it.Maybe try giving it a static IP address. While that shouldn't be necessary per se, sometimes it's just something specific to your network that causes the DHCP lease to expire, or reset.
I'd also consider any strong sources of nearby interference, for example mobile phones, home cordless phones, Bluetooth devices, even a microwave oven, that might be causing the drops.
You installed the Moode distro, correct? If so, when you look in the settings, it should tell you what the wireless strength is, and if it looks strong, then there is no good reason why it should drop except interference, or an expiring DHCP lease scenario.
My 2 cents.
Thats going to vary substantially depending on which DAC is attached to the Pi. While the Node has it's own at least competent onboard DAC, the Pi's analog output is not really meant to be used for music, originally the S/N ratio was roughly akin to 11-bit resolution through it's analog output, and though that was upgraded via a driver revision in 2017, it is still below 16-bit resolution.What are your thoughts on the Pi vs Node2 as far as sound quality?