Did you change anything on your system before the problems occurred? For example an update to the latest Max2Play version? Which Max2Play version do you use on your server? Did you connect the server to the internet via LAN or WiFi? Did something change in the Health Checker at the „Settings/Reboot“ tab when the dropouts occurred?
Apart from that the log file from the Squeezebox server could help us to identify the problem. You can find it in the server settings under „Information“.