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Eight Sleep Pod connectivity (offline / nightly drops)

URL: https://mkdocs.justinsforge.com/memory/general/reference_eight_sleep_pod_connectivity/

Root cause (confirmed 2026-05-30)

The Pod Hub kept showing "white LED but offline in the app" and dropping roughly every other night. Root cause: the Hub was associating to 5GHz on the single merged GFiber SSID (Wieb Wifi). 5GHz from under/beside the bed is too weak to hold a steady connection to Eight Sleep's cloud, so the Hub joins wifi (white LED) but never completes / sustain its cloud session.

Confirmed by: resetting the Hub and pairing it to an iPhone Personal Hotspot with "Maximize Compatibility" ON (forces 2.4GHz) brought it online immediately. So the Hub and Eight Sleep cloud are healthy; the home 5GHz link was the only problem.

Diagnostic facts

  • The HA eight_sleep integration is 100% cloud-based (polls app-api.8slp.net / client-api.8slp.net); it has no local visibility into the Hub. HA "available" entities can be stale cached values, always check last_updated freshness, not just state.
  • AdGuard (CT 105) is not blocking 8slp.net (verified in querylog); DNS resolves fine. The only Eight Sleep cloud traffic on the LAN comes from the HA integration (appears as client 192.168.86.67), never from the Hub when it's failing.
  • Hub LED: yellow = pairing mode (small button on back), white = joined wifi. White-but-app-offline = on wifi but not cloud-registered.
  • GFiber/Google merged SSID cannot split bands or disable 5GHz in the standard app (check "Advanced Wi-Fi settings" for a band-steering toggle, not guaranteed).

Permanent fix (in progress)

Dedicated 2.4GHz-only SSID from a TP-Link TL-WA801N AP (2.4GHz, 300Mbps, passive PoE), configured in Access Point mode, wired into one of Finn's spare NIC ports (nic0 or nic3) and bridged onto vmbr0 (same pattern as the GFiber mesh extender on nic1, see [[reference_ha_post_reboot_recovery]] for the bridge layout). Pod joins that SSID on the main 192.168.86.0/24 subnet. AP purchased 2026-05-30, install pending.

Optional belt-and-suspenders: DHCP reservation for the Hub once it's on the 2.4 SSID.

[Claude Code]