roon is using your network (wired or WiFi). If your signal is too weak where the source device (DAC, receiver, etc.) is, you may be able to install a WiFi extender to improve the signal. Needless to say, A wired network connection is best, but a strong WiFi signal should work as well.
I was getting lots of drop outs until a got a WiFi extender and plugged both my core and bridge end point into the extender with ethernet cables. The main router is on first floor but headphone setup is on second. Also my iPhone and iPads connected much faster.