# End device can not join a network

**URL:** <https://forums.digi.com/t/end-device-can-not-join-a-network/22469>\
**Category:** XBee - Zigbee\
**Tags:** xbee-coordinator, end-device, xbee, zigbee\
**Created:** [June 9, 2021, 9:11am UTC](https://forums.digi.com/t/end-device-can-not-join-a-network/22469 "2021-06-09T09:11:58Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![aminb](https://avatars.discourse-cdn.com/v4/letter/a/3da27b/32.png) [@aminb](https://forums.digi.com/u/aminb)\
**Post date:** [June 9, 2021, 9:11am UTC](https://forums.digi.com/t/end-device-can-not-join-a-network/22469/1 "2021-06-09T09:11:58Z")

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Hi All,

I have two XB3-24 devices configured as Zigbee Coordinator API and Zigbee End Device API.  
End device can’t join coordinator’s network. Security is disabled on both (EE = 0 and KY = 0).  
Coordinator’s NC = 13  
End device Operating network parameters return:  
AI = 0x24 or 0x27  
OP = 0  
OI = FFFF  
CH = 0

When switching to Router, it gets associated.  
I need your help please.  
Thanks in advance.

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<div class="post-metadata">

**Author:** ![mvut](https://sea2.discourse-cdn.com/flex016/user_avatar/forums.digi.com/mvut/32/31_2.png) [@mvut](https://forums.digi.com/u/mvut)\
**Post date:** [June 21, 2021, 2:48pm UTC](https://forums.digi.com/t/end-device-can-not-join-a-network/22469/2 "2021-06-21T14:48:53Z")

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Sounds like Joining is disabled or something. What firmware version are you working with?