Due to new [Android O background policies](https://www.youtube.com/watch?v=Pumf_4yjTMc), the service no longer works properly on API 26. Linked to: https://github.com/eclipse/paho.mqtt.android/issues/195
Due to new Android O background policies, the service no longer works properly on API 26.
Linked to: eclipse-paho/paho.mqtt.android#195