Sonos Play setup loop: new units quarantined (upnpovertls) until firmware updates
Summary
New Sonos Play (S58) units ship on firmware 94.1-71219-manufacturing. When added to an existing household running 97.1-80312, the new unit is placed in the household's QuarantinedDevices list with QuarantineReason="upnpovertls" (Configuration="0", SecureRegState="0"). The app shows "Play is not registered", and setup cannot complete.
Symptoms
• The app shows "Play is not registered".
• Fix It loops: asks for a reboot, then after opening the app it asks for a reboot again. After a reset it again spends a few minutes "connecting to WiFi", then reports the speaker was set up but "might not be working properly". It stays unregistered.
• Check for updates reports no updates available, because the quarantined unit is not
part of the system.
• Rebooting and factory resetting the speaker do not help.
Reproduction
This happened with two Plays on consecutive days:
| Unit | MAC | First seen on network | Resolved |
| Play 1 | 80:4A:F2:B6:68:66 | 2026-09-29 20:23 CEST | 2026-09-29, after several reboots and resets |
| Play 2 | 80:4A:F2:B6:68:40 | 2026-09-30 16:56 CEST | 2026-09-30 ~20:55 CEST, with no user action |
Both units fixed themselves without any deliberate step: the app suddenly offered setup plus an update, and then the update, chime pairing and button pairing all worked.
Timeline for Play 2 (from the network controller's logs)
| Time (CEST) | Event |
| 16:56–20:45 | Play 2 on Wi-Fi, quarantined; only ~4.4 MB downloaded in total |
| 20:53 | The already-updated Play 1 was powered on (and the phone app was woken around the same time) |
| 20:53–20:55 | Play 2 downloaded ~200 MB (the firmware), then rebooted |
| 20:56 | Play 2 back on Wi-Fi; app offered setup and update; setup completed |
It looks as if a factory-firmware unit in upnpovertls quarantine is not offered its update until something prompts the household or the app to look again.
Network (verified clean)
• The new unit was on the same SSID, subnet and L2 segment as the phone and all other Sonos
speakers: a single flat LAN with no VLANs and no client isolation.
• No firewall, content-filter, IPS or region-blocking hits for its IP.
• Stable Wi-Fi: −42 dBm, 5 GHz, Wi-Fi 6, 100% client satisfaction.
• UniFi network: UDM Pro SE with U7 Pro XGS and U6 Pro access points. SSID is WPA3-only with PMF
required, 5/6 GHz, MLO off. IGMP snooping off, multicast enhancement off, mDNS on.
• The rest of the household works normally on the same network: Arc Ultra + Sub, 4× Five, Move, Move 2.
Household diagnostics
The quarantine entry for Play 2, taken from the household's ZoneGroupState:
| <QuarantinedDevices> <Device UUID="RINCON_804AF2B6684001400" Location="http://172.20.20.81:1400/xml/device_description.xml" ZoneName="Unnamed Room" QuarantineReason="upnpovertls" Configuration="0" SoftwareVersion="94.1-71219-manufacturing" MinCompatibleVersion="93.0-00000" SecureRegState="0" /> </QuarantinedDevices>
The rest of the household reported SoftwareVersion="97.1-80312" and MinCompatibleVersion="96.0-00000". Diagnostics confirmation number: [personally identifying number removed] |
Moderator Note: Diagnostics number recorded and removed