# Z-wave things lose their Lifeline Association Group

**URL:** <https://community.openhab.org/t/z-wave-things-lose-their-lifeline-association-group/44244>\
**Category:** Beginners\
**Tags:** association, zwave1\
**Created:** [April 27, 2018, 11:18pm UTC](https://community.openhab.org/t/z-wave-things-lose-their-lifeline-association-group/44244 "2018-04-27T23:18:31Z")\
**Posts on this page:** 1\
**Showing post:** 83

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**Author:** ![sihui](https://community.openhab.org/user_avatar/community.openhab.org/sihui/32/55674_2.png) [@sihui](https://community.openhab.org/u/sihui)\
**Post date:** [October 28, 2018, 11:52am UTC](https://community.openhab.org/t/z-wave-things-lose-their-lifeline-association-group/44244/83 "2018-10-28T11:52:49Z")

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> [@OMR](#):
>
> but an OH upgrade wiped it all

> [@Log4j2 Sample Config](https://community.openhab.org/t/log4j2-sample-config/33284):
>
> Here is my setup for the new [log4j2](https://logging.apache.org/log4j/2.x/) logging package that is included in the [latest upgrade](https://community.openhab.org/t/karaf-upgrade/33208) of openHAB2 snapshot (2.2.0 Build \>#1009) All changes happen in the $OPENHAB\_USERDATA/etc/org.ops4j.pax.logging.cfg file (full path in Linux with apt installation: /var/lib/openhab2/etc/org.ops4j.pax.logging.cfg) Notes My OH2 installation is very stable and I don’t add many new stuff so I want my logs to show me only Warnings+. I am running the following addons (in addons.cfg):binding = knx1, zwave, m…

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