If they’re set up as surrounds and a Sub with the Arc, they connect to the Arc, not your WiFi directly.
Thanks for the reply. They weren’t set up as surrounds - it was Arc + Sub and then the 5 by itself. I hope that makes sense.
Connecting to the arc does make sense as well since I did that with the first sub but it’s not giving me the option unfortunately
Then there isn’t enough information here to help, I’m sorry. Some general statements: when not in a ‘home theater room’, you can only have one Sub bonded. Two Subs are possible in a ‘home theater room’ context when one of them is gen 3, and neither of them is a Sub mini.
Otherwise, I’d recommend that you call Sonos Support directly to discuss it. They may be able to get a clearer picture of your network devices, and what Sonos isn’t properly connecting to it.