# Gateway status connected but enable to receive data from lora end node

**URL:** <https://www.thethingsnetwork.org/forum/t/gateway-status-connected-but-enable-to-receive-data-from-lora-end-node/33307>\
**Category:** Raspberry Pi Gateways\
**Created:** [January 10, 2020, 11:32pm UTC](https://www.thethingsnetwork.org/forum/t/gateway-status-connected-but-enable-to-receive-data-from-lora-end-node/33307 "2020-01-10T23:32:23Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![alaeddine](https://www.thethingsnetwork.org/forum/user_avatar/www.thethingsnetwork.org/alaeddine/32/31328_2.png) [@alaeddine](https://www.thethingsnetwork.org/forum/u/alaeddine)\
**Post date:** [January 10, 2020, 11:32pm UTC](https://www.thethingsnetwork.org/forum/t/gateway-status-connected-but-enable-to-receive-data-from-lora-end-node/33307/1 "2020-01-10T23:32:23Z")

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alaa@ttn-ensi-gateway:/opt/ttn-gateway/packet\_forwarder $ sudo tail -f /var/log/syslog  
Jan 11 00:12:13 ttn-ensi-gateway ttn-gateway[1203]: # Invalid gps time reference (age: 1578697903 sec)  
Jan 11 00:12:13 ttn-ensi-gateway ttn-gateway[1203]: # Manual GPS coordinates: latitude 0.00000, longitude 0.00000, altitude 0 m  
Jan 11 00:12:13 ttn-ensi-gateway ttn-gateway[1203]: ##### END #####  
Jan 11 00:12:13 ttn-ensi-gateway ttn-gateway[1203]: INFO: [down] for server router.eu.thethings.network PULL\_ACK received in 81 ms  
Jan 11 00:12:13 ttn-ensi-gateway ttn-gateway[1203]: INFO: [down] for server router.eu.thethings.network PULL\_ACK received in 81 ms  
Jan 11 00:12:13 ttn-ensi-gateway ttn-gateway[1203]: ##### 2020-01-10 23:12:13 GMT #####  
Jan 11 00:12:13 ttn-ensi-gateway ttn-gateway[1203]: ### [UPSTREAM] ###  
Jan 11 00:12:13 ttn-ensi-gateway ttn-gateway[1203]: # RF packets received by concentrator: 0  
Jan 11 00:12:13 ttn-ensi-gateway ttn-gateway[1203]: # CRC\_OK: 0.00%, CRC\_FAIL: 0.00%, NO\_CRC: 0.00%  
Jan 11 00:12:27 ttn-ensi-gateway kernel: [6177.813697] device wlan0 left promiscuous mode  
Jan 11 00:14:43 ttn-ensi-gateway ttn-gateway[1203]: # RF packets forwarded: 0 (0 bytes)  
Jan 11 00:14:43 ttn-ensi-gateway ttn-gateway[1203]: # PUSH\_DATA datagrams sent: 1 (202 bytes)  
Jan 11 00:14:43 ttn-ensi-gateway ttn-gateway[1203]: # PUSH\_DATA acknowledged: 0.00%  
Jan 11 00:14:43 ttn-ensi-gateway ttn-gateway[1203]: ### [DOWNSTREAM] ###  
Jan 11 00:14:43 ttn-ensi-gateway ttn-gateway[1203]: # PULL\_DATA sent: 3 (66.67% acknowledged)  
Jan 11 00:14:43 ttn-ensi-gateway ttn-gateway[1203]: # PULL\_RESP(onse) datagrams received: 0 (0 bytes)  
Jan 11 00:14:43 ttn-ensi-gateway ttn-gateway[1203]: # RF packets sent to concentrator: 0 (0 bytes)  
Jan 11 00:14:43 ttn-ensi-gateway ttn-gateway[1203]: # TX errors: 0  
Jan 11 00:14:43 ttn-ensi-gateway ttn-gateway[1203]: ### [GPS] ###  
Jan 11 00:14:43 ttn-ensi-gateway ttn-gateway[1203]: # Invalid gps time reference (age: 1578697933 sec)  
Jan 11 00:14:43 ttn-ensi-gateway ttn-gateway[1203]: # Manual GPS coordinates: latitude 0.00000, longitude 0.00000, altitude 0 m  
Jan 11 00:14:43 ttn-ensi-gateway ttn-gateway[1203]: ##### END #####  
Jan 11 00:14:43 ttn-ensi-gateway ttn-gateway[1203]: INFO: [down] for server router.eu.thethings.network PULL\_ACK received in 80 ms  
Jan 11 00:14

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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:** [January 11, 2020, 12:25am UTC](https://www.thethingsnetwork.org/forum/t/gateway-status-connected-but-enable-to-receive-data-from-lora-end-node/33307/2 "2020-01-11T00:25:52Z")

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Fix your configuration, fake gps coordinates should not be at 0,0.

Also add some information to your message, don’t expect us to guess what is and what isn’t happening. Good starting point would be to answer the next questions:

- What frequency plan are you using?
- What is your hardware?
- Where in the world are you located?
- Why do you expect to receive data? (Is there a known working node sending packets?)

And finally, learn to [format](https://www.thethingsnetwork.org/forum/t/how-do-i-format-my-forum-post-howto/8735) your postings properly.

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<div class="post-metadata">

**Author:** ![alaeddine](https://www.thethingsnetwork.org/forum/user_avatar/www.thethingsnetwork.org/alaeddine/32/31328_2.png) [@alaeddine](https://www.thethingsnetwork.org/forum/u/alaeddine)\
**Post date:** [January 11, 2020, 2:15pm UTC](https://www.thethingsnetwork.org/forum/t/gateway-status-connected-but-enable-to-receive-data-from-lora-end-node/33307/3 "2020-01-11T14:15:56Z")

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Thank you for your reply.

1. I am using Europe868MHz frequency plan.
2. My gateway is based on the iC880a USB concentrator with a Raspberry Pi host.
3. My location is Tunis,Tunisia.
4. I am using STMicroelectronics STM32 LoRa (B-L072Z-LRWAN1) to send packets to the getaway,I tried to run the end node project exemple.

I tried to debug while sending the packets :

APP\_VERSION= 01.03.00.00  
MAC\_VERSION= 04.04.02.00  
ABP

DevEui= 00-2E-D3-55-F7-29-55-73

DevAdd= 260115BB

NwkSKey= 6A AA A2 CF 5F 70 84 DB 30 E7 31 E8 E4 25 35 B6

AppSKey= 3F 03 61 F0 1A 5D 73 C1 24 BD C6 49 D6 36 B8 8A

0s461: PHY txDone

1s498: PHY rxTimeOut

2s534: PHY rxTimeOut