All three issue sound when I play music via , say Amazon Music, but when I connect to TV (optical audio cable connection), sound comes ONLY from the soundbar. They accessory speakers are on and connected (checked via the app).
I would firstly recommend that you perform a reboot of your router. Routers may need to be reset from time to time—much like rebooting a computer. Please disconnect power from the router for 30 seconds, then wait for it to start up and connect.
Then please continue to determine if your product is making a reliable connection to the router. Go to the product's "Product Info" screen in Bose Music app and check the RSSI Signal Strength. The number will range from -30 dBm (best signal) to -90 dBm (poor signal). If the connection is poor, consider relocating the router and/or product or reducing sources of interference to improve signal.
Please let us know how you get on. We would love to get this resolved for you.