# TTN Outdoor Gateway not sending data

**URL:** <https://www.thethingsnetwork.org/forum/t/ttn-outdoor-gateway-not-sending-data/44161>\
**Category:** TTOG - The Things Outdoor Gateway\
**Created:** [February 11, 2021, 8:41pm UTC](https://www.thethingsnetwork.org/forum/t/ttn-outdoor-gateway-not-sending-data/44161 "2021-02-11T20:41:47Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![DatascopeTTN](https://www.thethingsnetwork.org/forum/user_avatar/www.thethingsnetwork.org/datascopettn/32/35697_2.png) [@DatascopeTTN](https://www.thethingsnetwork.org/forum/u/DatascopeTTN)\
**Post date:** [February 11, 2021, 8:41pm UTC](https://www.thethingsnetwork.org/forum/t/ttn-outdoor-gateway-not-sending-data/44161/1 "2021-02-11T20:41:47Z")

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We have two TTN Outdoor Gateways that have recently stopped sending data. They show as connected but get no data through. When we investigate the logson both devices the same received pkt log is recorded repeatedly.

Log snippet below. Any ideas appreciated.

```auto
INFO: Received pkt from mote: 11000003 (fcnt=9925)

JSON up: {"rxpk":[{"tmst":2747296972,"time":"2021-02-08T14:20:11.486143Z","tmms":1296829211486,"chan":7,"rfch":1,"freq":868.500000,"stat":1,"modu":"LORA","datr":"SF7BW125","codr":"4/5","lsnr":0.8,"lsnr_min":-5.8,"lsnr_max":3.5,"rssi":-121,"size":23,"data"
:"AAMAABECxSYsyEQQ0KTVs3AJxkovtoE="}]}

INFO: [up] PUSH_ACK received in 11 ms

INFO: Received pkt from mote: 11000003 (fcnt=9925)

JSON up: {"rxpk":[{"tmst":2747329284,"time":"2021-02-08T14:20:11.518455Z","tmms":1296829211518,"chan":6,"rfch":1,"freq":868.300000,"stat":1,"modu":"LORA","datr":"SF8BW125","codr":"4/5","lsnr":-4.0,"lsnr_min":-5.8,"lsnr_max":1.5,"rssi":-113,"size":23,"data
":"AAMAABECxSYsZj8Q0KTVs3C8dUr4jNY="}]}

INFO: [up] PUSH_ACK received in 11 ms

INFO: Received pkt from mote: 11000003 (fcnt=9925)

JSON up: {"rxpk":[{"tmst":2747387732,"time":"2021-02-08T14:20:11.576903Z","tmms":1296829211576,"chan":6,"rfch":1,"freq":868.300000,"stat":1,"modu":"LORA","datr":"SF10BW125","codr":"4/5","lsnr":-4.8,"lsnr_min":-7.0,"lsnr_max":-0.2,"rssi":-114,"size":23,"da
ta":"AAMAABECxSYsbUMQ0KTVs3BWIJBFG4Y="}]}

INFO: [up] PUSH_ACK received in 11 ms

INFO: Received pkt from mote: 11000003 (fcnt=9925)
```

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<div class="post-metadata">

**Author:** ![cslorabox](https://www.thethingsnetwork.org/forum/user_avatar/www.thethingsnetwork.org/cslorabox/32/35697_2.png) [@cslorabox](https://www.thethingsnetwork.org/forum/u/cslorabox)\
**Post date:** [February 11, 2021, 8:59pm UTC](https://www.thethingsnetwork.org/forum/t/ttn-outdoor-gateway-not-sending-data/44161/2 "2021-02-11T20:59:25Z")

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~~The repeating fcnt indicates something in the node is broken.~~

~~Repeating an already used fcnt is illegal in LoRaWan, so these packets will be ignored by the network server.~~

see below, that’s not what these are

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<div class="post-metadata">

**Author:** ![DatascopeTTN](https://www.thethingsnetwork.org/forum/user_avatar/www.thethingsnetwork.org/datascopettn/32/35697_2.png) [@DatascopeTTN](https://www.thethingsnetwork.org/forum/u/DatascopeTTN)\
**Post date:** [February 11, 2021, 9:02pm UTC](https://www.thethingsnetwork.org/forum/t/ttn-outdoor-gateway-not-sending-data/44161/3 "2021-02-11T21:02:55Z")

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Appreciate the information, thanks. The nodes do appear to work on other Gateways though. Could it be a gateway fault?

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<div class="post-metadata">

**Author:** ![kersing](https://www.thethingsnetwork.org/forum/user_avatar/www.thethingsnetwork.org/kersing/32/44777_2.png) [@kersing](https://www.thethingsnetwork.org/forum/u/kersing)\
**Post date:** [February 11, 2021, 10:04pm UTC](https://www.thethingsnetwork.org/forum/t/ttn-outdoor-gateway-not-sending-data/44161/4 "2021-02-11T22:04:33Z")

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1. Those join requests not getting an answer might have nothing to do with the gateways. Have you checked those requests are visible in the application?
2. Next time can _you_ [format](https://www.thethingsnetwork.org/forum/t/how-to-format-your-forum-post-howto/8735) the message for readability?

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<div class="post-metadata">

**Author:** ![cslorabox](https://www.thethingsnetwork.org/forum/user_avatar/www.thethingsnetwork.org/cslorabox/32/35697_2.png) [@cslorabox](https://www.thethingsnetwork.org/forum/u/cslorabox)\
**Post date:** [February 11, 2021, 10:29pm UTC](https://www.thethingsnetwork.org/forum/t/ttn-outdoor-gateway-not-sending-data/44161/5 "2021-02-11T22:29:11Z")

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> [@kersing](#):
>
> Those join requests

Oops, you’re right.

These are _not_ repeating fcounts, rather than _unsophistication_ of the packet forwarder’s debug prints in _assuming_ it is looking at an ordinary in-session uplink, and so mis-interperting part of the join EUI as a frame count, is to blame for my mistaken post.

Lack of any apparent join-accept downlink through the gateway would seem to indicate that either another gateway is closer, the device isn’t registered, that some detail of the registration has been mis-entered, or that the join device nonce is being re-used. But the nonce seems to be random between the examples given, so that’s probably not it unless we’re seeing an insufficiently stirred pseudo random number generation do the same sequence over and over.