# OTAA ok, 12h later I get denied, reboot gateway --\> OK again ...!?

**URL:** <https://www.thethingsnetwork.org/forum/t/otaa-ok-12h-later-i-get-denied-reboot-gateway-ok-again/2025>\
**Category:** End Devices (Nodes)\
**Created:** [May 3, 2016, 3:17pm UTC](https://www.thethingsnetwork.org/forum/t/otaa-ok-12h-later-i-get-denied-reboot-gateway-ok-again/2025 "2016-05-03T15:17:35Z")\
**Posts on this page:** 1\
**Showing post:** 43

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**Author:** ![matthijskooijman](https://www.thethingsnetwork.org/forum/letter_avatar_proxy/v4/letter/m/71c47a/32.png) [@matthijskooijman](https://www.thethingsnetwork.org/forum/u/matthijskooijman)\
**Post date:** [January 26, 2017, 9:08pm UTC](https://www.thethingsnetwork.org/forum/t/otaa-ok-12h-later-i-get-denied-reboot-gateway-ok-again/2025/43 "2017-01-26T21:08:06Z")

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> [@arjanvanb](#):
>
> How far did you stretch the receive window? Maybe even 100% of the maximum error is allowed:
> 
> `LMIC_setClockError(MAX_CLOCK_ERROR);`

I’m not entirely sure that will work - at some point the RX windows will end up overlapping (which each other and possibly even the TX time), and I’m not sure what will happen then (I remember leaving that for later, but I never got around to handling that gracefully).

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