just wanted to share my experience today with Sonos Support. It took a long time to get someone on the phone, but after I did it was great… loooong story short, when i was setting up a new sonos arc for my in-laws, it would give me an error 1101 after entering the wifi password. Support helped me manually plugging in the arc soundbar directly into our Eero main router with ethernet cable, then having to use my MacBook pro to download the sonos app and pushing an update to the arc… then after the update, i was able to unplug the soundbar ethernet cable, and place the soundbar where it was going to live, and do a factory reset, then hookup with wifi.. now it works after 60 mins on the phone with support trying many things.. but it works great now.
sonos arc not connecting to wifi for initial update
I am going through this same issue. Connects to app during setup, but when connecting to WiFi, the light on arc goes off, and then it says 1101 error and couldn’t update device. Looking forward to a solution.
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