# Cannot add some Z-Wave devices via S2

**URL:** <https://community.homey.app/t/cannot-add-some-z-wave-devices-via-s2/53485>\
**Category:** Questions & Help\
**Tags:** z-wave\
**Created:** [October 21, 2021, 10:35am UTC](https://community.homey.app/t/cannot-add-some-z-wave-devices-via-s2/53485 "2021-10-21T10:35:49Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![Easy\_Home](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/easy_home/32/46299_2.png) [@Easy\_Home](https://community.homey.app/u/Easy_Home)\
**Post date:** [October 21, 2021, 10:35am UTC](https://community.homey.app/t/cannot-add-some-z-wave-devices-via-s2/53485/1 "2021-10-21T10:35:49Z")

</div>

After Homey was updated to v7, some of my Z-Wave devices could not be successfully added to Homey.

Homey’s pairing process lasts approximately 15 seconds, and then Homey determines that the Z-Wave pairing timed out and aborts the pairing process. In fact my Z-Wave device takes about 45 seconds to response the Z-Wave Security Key (S2).

Many users have purchased this device which works on Homey v6, but it cannot use on Homey 7. I cannot help them. What should I do next? Can Homey extend the pairing time of the Z-Wave device to more than 45 seconds, such about 1 minute?