In addition to what is posted there note that my server has a fixed IP address (no DHCP look up), and loss of connection happens regularly. At best I get about 2 hours, often less. Restarting Fireflywill let me reconnect from Roku about 30 secs later (sometime requires a couple of restarts).
Is this wired, or wireless? And is the soundbridge static IP, or dhcp?
I’ve heard some reports that it went away by setting the sb to static ip, but I’m not sure if that’s repeatable, or just plain luck.
Would you be willing to try a static ip and seeing if it persists?