Do you have the wifi turned off on the Arc?
Have you tried a reboot of your router?
Have you perhaps switched off the Wireless Adapter on your Sonos Arc - check ‘Settings/System/mArc Room Name]’ and goto ‘Products/Arc’ to ensure it’s switched on.
Yeah they are both on, its very odd
Ive rebooted the router as well
Perhaps unbond the sub from the Arc and see if the sub will bond to another available/compatible Sonos room, that’s if you have one available that you can try? If not, maybe just try unbonding/rebonding it to the Arc.
You might even want to try powering off/on both devices whilst they are separated, before bonding back the Sub.
Given that it is on, it may be that you need to call Sonos Support directly to discuss it.
Yeah I have earlier, they going to do connect to see if its ok tomorrow
ill try rebooting both though
It’s probably the router that’s the issue. Some are incompatible with home theatre satellites when the system’s in WiFi/’wireless’ mode. The router doesn’t respond correctly to the satellites’ proxied IP address requests.
The options are to wire one of the Sonos devices or to change the router.
Yeah thats why i bought a new router, but its not a dsl modem, so sending it back