[BUG] Extend MQTT Polling Time to Avoid Home Assistant unavailable message every 70s

[justmylukely]

Faikin hardware
Faikout-S3-MINI-N4-R2 from Faikin.au

Daikin hardware
FVXS71LVMA with S21 cable

Describe the bug
HomeAssistant w/ MQTT

Device Power state "became unavailable" every 70s.
Device control does not function until it reconnects.

Broker Log:
2026-01-19 22:28:49: New connection from 10.29.100.82:58510 on port 1883.
2026-01-19 22:28:49: Client Faikout:Faikin-Lounge_0A6F90 already connected, closing old connection.
2026-01-19 22:28:49: New client connected from 10.29.100.82:58510 as Faikout:Faikin-Lounge_0A6F90 (p2, c1, k30, u'mqtt_user').

To Reproduce
Consistently occuring on 2 devices.

Expected behavior
MQTT connection remains active.

Additional context
Have tried adjusting available MQTT settings on device.
Switched from Mosquitto to EQMX.
Moved to 2.4Ghz only SSID.

[revk]

Sounds like a keep-alive issue of some sort. I'd need a packet dump for a whole session to get some clues. Works fine with lots of other brokers, including the mqtt (mosquito) used in HA.