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Configured a mirror port on the switch to mirror the upstream traffic (from the HomePod to the AP). Inserted a managed switch between the new AP and the LAN. I added another AP to my LAN, with the same SSID as the Unify AP (so I wouldn’t have to reconfigure the HomePod). The destination and purpose of the 4-5 GB of data that the HomePod is transmitting is unknown.


We have lots of internet download traffic (YouTube, Netflix, AppleTV, etc), but I don’t see any signs of multi-gigabytes of data getting sent upstream each day. I’ve taken a look at the traffic stats captured by my gateway router. But such broadcast messages should not account for multi-gigabytes per day. No doubt it’s advertising itself on the LAN with mDNS broadcasts, notifying other Apple devices that it’s available. To be clear, the telemetry from the Ubiquity AP does not indicate that the gigabytes of data are being uploaded to the internet, just that the HomePod is sending out data on WiFi. The feature to Share Analytics with Apple is turned off (and even if it were enabled, the occasional log file couldn’t possibly comprise gigabytes of data each day). It’s not been streaming any music (if it had, that would account for some bits being sent from the AP to the HomePod, but not transmitted from the HomePod). It’s in an upstairs bedroom - nobody’s been saying “Hey Siri” nor asking it any questions, so no need for it to be sending digitized audio to Siri HQ. It’s transmitting 4 to 5 GB of data daily!! And receiving around 1 to 2 GB per day. The stats reveal that my Original HomePod is a data pig. The UAP reports real-time data statistics for every client device connected to it. I recently updated my WiFi network gear, replacing an old Asus AP with a new faster Ubiquity access point (a UAP-AC-Lite). I’ve posted this issue on Apple’s Discussion board, but got no meaningful replies, so I thought I’d ask the ever-knowledgeable TidBITS community.
