# No Join Response from TTN

**URL:** <https://www.thethingsnetwork.org/forum/t/no-join-response-from-ttn/10469>\
**Category:** LMIC\
**Created:** [November 6, 2017, 2:46pm UTC](https://www.thethingsnetwork.org/forum/t/no-join-response-from-ttn/10469 "2017-11-06T14:46:21Z")\
**Posts on this page:** 1\
**Showing post:** 9

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**Author:** ![arjanvanb](https://www.thethingsnetwork.org/forum/user_avatar/www.thethingsnetwork.org/arjanvanb/32/46626_2.png) [@arjanvanb](https://www.thethingsnetwork.org/forum/u/arjanvanb)\
**Post date:** [July 20, 2018, 8:37am UTC](https://www.thethingsnetwork.org/forum/t/no-join-response-from-ttn/10469/9 "2018-07-20T08:37:18Z")

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> [@kersing](#):
>
> chances are the random nonces are in fact not random and always use the same sequence

Indeed. So, look for error messages in TTN Console: [OTAA shows "Activation DevNonce not valid: already used"](https://www.thethingsnetwork.org/forum/t/otaa-shows-activation-devnonce-not-valid-already-used/5079). (Note that things are different in LoRaWAN 1.1; see the same topic.)

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