hey mate:
Are you LAN connected? like on your router or switch? If so, when turned on, does the RJ45 LAN port show activity? if so, it probably booted correctly then you might want to find system IP using tool like advanced IP scanner or run cmd: "ping runaudio.local" will show you the righ IP adress of the host.
if lights do not turns on or if you can't tell:
format your SD card with sd formatter :
with option quick format and format size adjustement.
https://www.sdcard.org/downloads/formatter_4/eula_windows/index.html
then write your freshly downloaded .IMG using win32 imager: on your SD card:
https://sourceforge.net/projects/win32diskimager/
protip, dont use cheap very low memory noname card.
hope it was clear enough and helped.