RAK831 & RAK2243 forwarding packet but have no Acknowledge & GPS

Dear RAK-Fellows,

As always, I am happy about the nice support platform here and I hope you can help me. I have two RPI 3B+ LoRa gateways running on Rak831 and Rak2243. I have followed the latest installation guide:

The Gateways show up nicely on TTN, the signals are forwarded by the gateway and the received signal counter goes up. However, I get no acknowledge for my Adeunis Field Tester device. Using an LP1301 from Dragino, it works but I’d rather go with RAK.

The Gateway also don’t get a GPS fix even though there are clearly GPS modules connected. That’s not such a big issue but the acknowledge error bothers me. Please see the logs for following commands attached:
sudo systemctl status ttn-gateway!
journalctl -f


As well as an image of the Rak2243 gateway.
Best and thank you!

Systemctl:
[email protected]:~/rak_common_for_gateway $ sudo systemctl status ttn-gateway
? ttn-gateway.service - The Things Network Gateway
Loaded: loaded (/lib/systemd/system/ttn-gateway.service; enabled; vendor preset: enabled)
Active: active (running) since Thu 2019-11-07 15:44:18 GMT; 41s ago
Main PID: 14332 (start.sh)
Tasks: 8 (limit: 2200)
Memory: 1.3M
CGroup: /system.slice/ttn-gateway.service
±14332 /bin/bash /opt/ttn-gateway/packet_forwarder/lora_pkt_fwd/start.sh
±14372 ./lora_pkt_fwd

Nov 07 15:44:56 rak-gateway ttn-gateway[14332]: WARNING: [gps] read() returned value 0
Nov 07 15:44:57 rak-gateway ttn-gateway[14332]: WARNING: [gps] read() returned value 0
Nov 07 15:44:57 rak-gateway ttn-gateway[14332]: WARNING: [gps] read() returned value 0
Nov 07 15:44:57 rak-gateway ttn-gateway[14332]: WARNING: [gps] read() returned value 0
Nov 07 15:44:59 rak-gateway ttn-gateway[14332]: WARNING: [gps] read() returned value 0
Nov 07 15:44:59 rak-gateway ttn-gateway[14332]: INFO: Received pkt from mote: D0021105 (fcnt=46037)
Nov 07 15:44:59 rak-gateway ttn-gateway[14332]: JSON up: {“rxpk”:[{“tmst”:37237028,“chan”:1,“rfch”:1,“freq”:868.300000,“stat”:1,“modu”:“LORA”,“datr”:"
Nov 07 15:44:59 rak-gateway ttn-gateway[14332]: WARNING: [gps] read() returned value 0
Nov 07 15:44:59 rak-gateway ttn-gateway[14332]: WARNING: [gps] read() returned value 0
Nov 07 15:44:59 rak-gateway ttn-gateway[14332]: WARNING: [gps] read() returned value 0

Journalctl -f:

[email protected]:~/rak_common_for_gateway $ journalctl -f
– Logs begin at Thu 2019-02-14 10:11:59 GMT. –
Nov 07 15:46:27 rak-gateway ttn-gateway[14332]: INFO: Received pkt from mote: D0021105 (fcnt=46037)
Nov 07 15:46:27 rak-gateway ttn-gateway[14332]: JSON up: {“rxpk”:[{“tmst”:126016324,“chan”:0,“rfch”:1,“freq”:868.100000,“stat”:1,“modu”:“LORA”,“datr”:“SF12BW125”,“codr”:“4/5”,“lsnr”:8.5,“rssi”:-99,“size”:23,“data”:“AAURAtB+1bNwZBICAACyGAAeA61xb1Q=”}]}
Nov 07 15:46:27 rak-gateway ttn-gateway[14332]: WARNING: [gps] read() returned value 0
Nov 07 15:46:27 rak-gateway ttn-gateway[14332]: INFO: [up] PUSH_ACK received in 68 ms
Nov 07 15:46:27 rak-gateway ttn-gateway[14332]: WARNING: [gps] read() returned value 0
Nov 07 15:46:27 rak-gateway ttn-gateway[14332]: WARNING: [gps] read() returned value 0
Nov 07 15:46:27 rak-gateway ttn-gateway[14332]: WARNING: [gps] read() returned value 0
Nov 07 15:46:29 rak-gateway ttn-gateway[14332]: WARNING: [gps] read() returned value 0
Nov 07 15:46:29 rak-gateway ttn-gateway[14332]: WARNING: [gps] read() returned value 0
Nov 07 15:46:29 rak-gateway ttn-gateway[14332]: WARNING: [gps] read() returned value 0
Nov 07 15:46:30 rak-gateway ttn-gateway[14332]: WARNING: [gps] read() returned value 0
Nov 07 15:46:30 rak-gateway ttn-gateway[14332]: WARNING: [gps] read() returned value 0
Nov 07 15:46:30 rak-gateway ttn-gateway[14332]: WARNING: [gps] read() returned value 0
Nov 07 15:46:32 rak-gateway ttn-gateway[14332]: WARNING: [gps] read() returned value 0
Nov 07 15:46:32 rak-gateway ttn-gateway[14332]: WARNING: [gps] read() returned value 0
Nov 07 15:46:32 rak-gateway ttn-gateway[14332]: WARNING: [gps] read() returned value 0
Nov 07 15:46:33 rak-gateway ttn-gateway[14332]: WARNING: [gps] read() returned value 0
Nov 07 15:46:33 rak-gateway ttn-gateway[14332]: WARNING: [gps] read() returned value 0
Nov 07 15:46:33 rak-gateway ttn-gateway[14332]: WARNING: [gps] read() returned value 0
Nov 07 15:46:35 rak-gateway ttn-gateway[14332]: WARNING: [gps] read() returned value 0
Nov 07 15:46:35 rak-gateway ttn-gateway[14332]: WARNING: [gps] read() returned value 0
Nov 07 15:46:35 rak-gateway ttn-gateway[14332]: INFO: Received pkt from mote: D0021105 (fcnt=46037)
Nov 07 15:46:35 rak-gateway ttn-gateway[14332]: JSON up: {“rxpk”:[{“tmst”:134087140,“chan”:1,“rfch”:1,“freq”:868.300000,“stat”:1,“modu”:“LORA”,“datr”:“SF12BW125”,“codr”:“4/5”,“lsnr”:7.8,“rssi”:-101,“size”:23,“data”:“AAURAtB+1bNwZBICAACyGADLsJuvUaE=”}]}
Nov 07 15:46:35 rak-gateway ttn-gateway[14332]: INFO: [down] PULL_ACK received in 79 ms
Nov 07 15:46:35 rak-gateway ttn-gateway[14332]: WARNING: [gps] read() returned value 0
Nov 07 15:46:35 rak-gateway ttn-gateway[14332]: INFO: [up] PUSH_ACK received in 38 ms
Nov 07 15:46:35 rak-gateway ttn-gateway[14332]: WARNING: [gps] read() returned value 0
Nov 07 15:46:35 rak-gateway ttn-gateway[14332]: WARNING: [gps] read() returned value 0
Nov 07 15:46:36 rak-gateway ttn-gateway[14332]: WARNING: [gps] read() returned value 0
Nov 07 15:46:36 rak-gateway ttn-gateway[14332]: WARNING: [gps] read() returned value 0
Nov 07 15:46:36 rak-gateway ttn-gateway[14332]: WARNING: [gps] read() returned value 0
Nov 07 15:46:38 rak-gateway ttn-gateway[14332]: WARNING: [gps] read() returned value 0
Nov 07 15:46:38 rak-gateway ttn-gateway[14332]: WARNING: [gps] read() returned value 0
Nov 07 15:46:38 rak-gateway ttn-gateway[14332]: WARNING: [gps] read() returned value 0
Nov 07 15:46:39 rak-gateway ttn-gateway[14332]: WARNING: [gps] read() returned value 0
Nov 07 15:46:39 rak-gateway ttn-gateway[14332]: WARNING: [gps] read() returned value 0
Nov 07 15:46:39 rak-gateway ttn-gateway[14332]: WARNING: [gps] read() returned value 0
Nov 07 15:46:41 rak-gateway ttn-gateway[14332]: WARNING: [gps] read() returned value 0
Nov 07 15:46:41 rak-gateway ttn-gateway[14332]: WARNING: [gps] read() returned value 0
Nov 07 15:46:41 rak-gateway ttn-gateway[14332]: WARNING: [gps] read() returned value 0
Nov 07 15:46:42 rak-gateway ttn-gateway[14332]: WARNING: [gps] read() returned value 0
Nov 07 15:46:42 rak-gateway ttn-gateway[14332]: WARNING: [gps] read() returned value 0
Nov 07 15:46:42 rak-gateway ttn-gateway[14332]: INFO: Received pkt from mote: D0021105 (fcnt=46037)
Nov 07 15:46:44 rak-gateway ttn-gateway[14332]: JSON up: {“rxpk”:[{“tmst”:142157980,“chan”:1,“rfch”:1,“freq”:868.300000,“stat”:1,“modu”:“LORA”,“datr”:“SF12BW125”,“codr”:“4/5”,“lsnr”:6.5,“rssi”:-103,“size”:23,“data”:“AAURAtB+1bNwZBICAACyGADRNrW2mTY=”}]}
Nov 07 15:46:44 rak-gateway ttn-gateway[14332]: WARNING: [gps] read() returned value 0
Nov 07 15:46:44 rak-gateway ttn-gateway[14332]: INFO: [up] PUSH_ACK received in 33 ms
Nov 07 15:46:44 rak-gateway ttn-gateway[14332]: WARNING: [gps] read() returned value 0
Nov 07 15:46:44 rak-gateway ttn-gateway[14332]: WARNING: [gps] read() returned value 0
Nov 07 15:46:44 rak-gateway ttn-gateway[14332]: WARNING: [gps] read() returned value 0
Nov 07 15:46:45 rak-gateway ttn-gateway[14332]: WARNING: [gps] read() returned value 0
Nov 07 15:46:45 rak-gateway ttn-gateway[14332]: INFO: [down] PULL_ACK received in 36 ms
Nov 07 15:46:45 rak-gateway ttn-gateway[14332]: WARNING: [gps] read() returned value 0
Nov 07 15:46:45 rak-gateway ttn-gateway[14332]: WARNING: [gps] read() returned value 0
Nov 07 15:46:45 rak-gateway ttn-gateway[14332]: WARNING: [gps] read() returned value 0
Nov 07 15:46:47 rak-gateway ttn-gateway[14332]: WARNING: [gps] read() returned value 0
Nov 07 15:46:47 rak-gateway ttn-gateway[14332]: WARNING: [gps] read() returned value 0
Nov 07 15:46:47 rak-gateway ttn-gateway[14332]: WARNING: [gps] read() returned value 0
Nov 07 15:46:48 rak-gateway ttn-gateway[14332]: WARNING: [gps] read() returned value 0
Nov 07 15:46:48 rak-gateway ttn-gateway[14332]: WARNING: [gps] read() returned value 0
Nov 07 15:46:48 rak-gateway ttn-gateway[14332]: WARNING: [gps] read() returned value 0
Nov 07 15:46:50 rak-gateway ttn-gateway[14332]: WARNING: [gps] read() returned value 0
Nov 07 15:46:50 rak-gateway ttn-gateway[14332]: WARNING: [gps] read() returned value 0
Nov 07 15:46:50 rak-gateway ttn-gateway[14332]: WARNING: [gps] read() returned value 0
Nov 07 15:46:51 rak-gateway ttn-gateway[14332]: WARNING: [gps] read() returned value 0
Nov 07 15:46:51 rak-gateway ttn-gateway[14332]: INFO: Received pkt from mote: D0021105 (fcnt=46037)
Nov 07 15:46:51 rak-gateway ttn-gateway[14332]: JSON up: {“rxpk”:[{“tmst”:150228884,“chan”:1,“rfch”:1,“freq”:868.300000,“stat”:1,“modu”:“LORA”,“datr”:“SF12BW125”,“codr”:“4/5”,“lsnr”:7.8,“rssi”:-103,“size”:23,“data”:“AAURAtB+1bNwZBICAACyGACJCO8fpzU=”}]}
Nov 07 15:46:51 rak-gateway ttn-gateway[14332]: WARNING: [gps] read() returned value 0
Nov 07 15:46:51 rak-gateway ttn-gateway[14332]: INFO: [up] PUSH_ACK received in 35 ms
Nov 07 15:46:51 rak-gateway ttn-gateway[14332]: WARNING: [gps] read() returned value 0
Nov 07 15:46:51 rak-gateway ttn-gateway[14332]: WARNING: [gps] read() returned value 0
Nov 07 15:46:51 rak-gateway ttn-gateway[14332]: WARNING: [gps] read() returned value 0
Nov 07 15:46:53 rak-gateway ttn-gateway[14332]: WARNING: [gps] read() returned value 0
Nov 07 15:46:53 rak-gateway ttn-gateway[14332]: WARNING: [gps] read() returned value 0
Nov 07 15:46:53 rak-gateway ttn-gateway[14332]: WARNING: [gps] read() returned value 0
Nov 07 15:46:54 rak-gateway ttn-gateway[14332]: WARNING: [gps] read() returned value 0
Nov 07 15:46:54 rak-gateway ttn-gateway[14332]: ##### 2019-11-07 15:46:53 GMT #####
Nov 07 15:46:54 rak-gateway ttn-gateway[14332]: ### [UPSTREAM] ###
Nov 07 15:46:54 rak-gateway ttn-gateway[14332]: # RF packets received by concentrator: 5
Nov 07 15:46:54 rak-gateway ttn-gateway[14332]: # CRC_OK: 80.00%, CRC_FAIL: 20.00%, NO_CRC: 0.00%
Nov 07 15:46:54 rak-gateway ttn-gateway[14332]: # RF packets forwarded: 4 (92 bytes)
Nov 07 15:46:54 rak-gateway ttn-gateway[14332]: # PUSH_DATA datagrams sent: 5 (939 bytes)
Nov 07 15:46:54 rak-gateway ttn-gateway[14332]: # PUSH_DATA acknowledged: 100.00%
Nov 07 15:46:54 rak-gateway ttn-gateway[14332]: ### [DOWNSTREAM] ###
Nov 07 15:46:54 rak-gateway ttn-gateway[14332]: # PULL_DATA sent: 3 (100.00% acknowledged)
Nov 07 15:46:54 rak-gateway ttn-gateway[14332]: # PULL_RESP(onse) datagrams received: 0 (0 bytes)
Nov 07 15:46:54 rak-gateway ttn-gateway[14332]: # RF packets sent to concentrator: 0 (0 bytes)
Nov 07 15:46:54 rak-gateway ttn-gateway[14332]: # TX errors: 0
Nov 07 15:46:54 rak-gateway ttn-gateway[14332]: # BEACON queued: 0
Nov 07 15:46:54 rak-gateway ttn-gateway[14332]: # BEACON sent so far: 0
Nov 07 15:46:54 rak-gateway ttn-gateway[14332]: # BEACON rejected: 0
Nov 07 15:46:54 rak-gateway ttn-gateway[14332]: ### [JIT] ###
Nov 07 15:46:54 rak-gateway ttn-gateway[14332]: # SX1301 time (PPS): 122673899
Nov 07 15:46:54 rak-gateway ttn-gateway[14332]: src/jitqueue.c:448:jit_print_queue(): INFO: [jit] queue is empty
Nov 07 15:46:54 rak-gateway ttn-gateway[14332]: ### [GPS] ###
Nov 07 15:46:54 rak-gateway ttn-gateway[14332]: # Invalid time reference (age: 1573141613 sec)
Nov 07 15:46:54 rak-gateway ttn-gateway[14332]: # no valid GPS coordinates available yet
Nov 07 15:46:54 rak-gateway ttn-gateway[14332]: ##### END #####
Nov 07 15:46:54 rak-gateway ttn-gateway[14332]: WARNING: [gps] read() returned value 0
Nov 07 15:46:54 rak-gateway ttn-gateway[14332]: JSON up: {“stat”:{“time”:“2019-11-07 15:46:53 GMT”,“rxnb”:5,“rxok”:4,“rxfw”:4,“ackr”:100.0,“dwnb”:0,“txnb”:0}}
Nov 07 15:46:54 rak-gateway ttn-gateway[14332]: WARNING: [gps] read() returned value 0
Nov 07 15:46:54 rak-gateway ttn-gateway[14332]: INFO: [up] PUSH_ACK received in 34 ms
Nov 07 15:46:54 rak-gateway ttn-gateway[14332]: WARNING: [gps] read() returned value 0
Nov 07 15:46:54 rak-gateway ttn-gateway[14332]: WARNING: [gps] read() returned value 0
Nov 07 15:46:54 rak-gateway ttn-gateway[14332]: WARNING: [gps] read() returned value 0
Nov 07 15:46:55 rak-gateway ttn-gateway[14332]: WARNING: [gps] read() returned value 0
Nov 07 15:46:55 rak-gateway ttn-gateway[14332]: INFO: [down] PULL_ACK received in 31 ms
Nov 07 15:46:55 rak-gateway ttn-gateway[14332]: WARNING: [gps] read() returned value 0
Nov 07 15:46:55 rak-gateway ttn-gateway[14332]: WARNING: [gps] read() returned value 0
Nov 07 15:46:55 rak-gateway ttn-gateway[14332]: WARNING: [gps] read() returned value 0
Nov 07 15:46:57 rak-gateway ttn-gateway[14332]: WARNING: [gps] read() returned value 0
Nov 07 15:46:57 rak-gateway ttn-gateway[14332]: WARNING: [gps] read() returned value 0
Nov 07 15:46:57 rak-gateway ttn-gateway[14332]: WARNING: [gps] read() returned value 0
Nov 07 15:46:58 rak-gateway ttn-gateway[14332]: WARNING: [gps] read() returned value 0
Nov 07 15:46:58 rak-gateway ttn-gateway[14332]: WARNING: [gps] read() returned value 0
Nov 07 15:46:58 rak-gateway ttn-gateway[14332]: WARNING: [gps] read() returned value 0
Nov 07 15:47:00 rak-gateway ttn-gateway[14332]: WARNING: [gps] read() returned value 0
Nov 07 15:47:00 rak-gateway ttn-gateway[14332]: INFO: Received pkt from mote: D0021105 (fcnt=46037)
Nov 07 15:47:00 rak-gateway ttn-gateway[14332]: JSON up: {“rxpk”:[{“tmst”:158299692,“chan”:0,“rfch”:1,“freq”:868.100000,“stat”:1,“modu”:“LORA”,“datr”:“SF12BW125”,“codr”:“4/5”,“lsnr”:7.0,“rssi”:-105,“size”:23,“data”:“AAURAtB+1bNwZBICAACyGABkZyIcopQ=”}]}
Nov 07 15:47:00 rak-gateway ttn-gateway[14332]: WARNING: [gps] read() returned value 0
Nov 07 15:47:00 rak-gateway ttn-gateway[14332]: INFO: [up] PUSH_ACK received in 31 ms
Nov 07 15:47:00 rak-gateway ttn-gateway[14332]: WARNING: [gps] read() returned value 0
Nov 07 15:47:00 rak-gateway ttn-gateway[14332]: WARNING: [gps] read() returned value 0
Nov 07 15:47:00 rak-gateway ttn-gateway[14332]: WARNING: [gps] read() returned value 0
Nov 07 15:47:01 rak-gateway ttn-gateway[14332]: WARNING: [gps] read() returned value 0
Nov 07 15:47:01 rak-gateway ttn-gateway[14332]: WARNING: [gps] read() returned value 0
Nov 07 15:47:01 rak-gateway ttn-gateway[14332]: WARNING: [gps] read() returned value 0
Nov 07 15:47:03 rak-gateway ttn-gateway[14332]: WARNING: [gps] read() returned value 0
Nov 07 15:47:03 rak-gateway ttn-gateway[14332]: WARNING: [gps] read() returned value 0
Nov 07 15:47:03 rak-gateway ttn-gateway[14332]: WARNING: [gps] read() returned value 0
Nov 07 15:47:04 rak-gateway ttn-gateway[14332]: WARNING: [gps] read() returned value 0
Nov 07 15:47:04 rak-gateway ttn-gateway[14332]: WARNING: [gps] read() returned value 0
Nov 07 15:47:04 rak-gateway ttn-gateway[14332]: WARNING: [gps] read() returned value 0
Nov 07 15:47:06 rak-gateway ttn-gateway[14332]: WARNING: [gps] read() returned value 0
Nov 07 15:47:06 rak-gateway ttn-gateway[14332]: INFO: [down] PULL_ACK received in 73 ms
Nov 07 15:47:06 rak-gateway ttn-gateway[14332]: WARNING: [gps] read() returned value 0
Nov 07 15:47:06 rak-gateway ttn-gateway[14332]: WARNING: [gps] read() returned value 0
Nov 07 15:47:06 rak-gateway ttn-gateway[14332]: WARNING: [gps] read() returned value 0
Nov 07 15:47:07 rak-gateway ttn-gateway[14332]: WARNING: [gps] read() returned value 0
Nov 07 15:47:07 rak-gateway ttn-gateway[14332]: INFO: Received pkt from mote: D0021105 (fcnt=46037)
Nov 07 15:47:07 rak-gateway ttn-gateway[14332]: JSON up: {“rxpk”:[{“tmst”:166370508,“chan”:0,“rfch”:1,“freq”:868.100000,“stat”:1,“modu”:“LORA”,“datr”:“SF12BW125”,“codr”:“4/5”,“lsnr”:7.0,“rssi”:-100,“size”:23,“data”:“AAURAtB+1bNwZBICAACyGADRZKlUOKo=”}]}
Nov 07 15:47:07 rak-gateway ttn-gateway[14332]: WARNING: [gps] read() returned value 0
Nov 07 15:47:07 rak-gateway ttn-gateway[14332]: INFO: [up] PUSH_ACK received in 30 ms
Nov 07 15:47:07 rak-gateway ttn-gateway[14332]: WARNING: [gps] read() returned value 0
Nov 07 15:47:07 rak-gateway ttn-gateway[14332]: WARNING: [gps] read() returned value 0
Nov 07 15:47:09 rak-gateway ttn-gateway[14332]: WARNING: [gps] read() returned value 0
Nov 07 15:47:09 rak-gateway ttn-gateway[14332]: WARNING: [gps] read() returned value 0
Nov 07 15:47:09 rak-gateway ttn-gateway[14332]: WARNING: [gps] read() returned value 0
Nov 07 15:47:10 rak-gateway ttn-gateway[14332]: WARNING: [gps] read() returned value 0
Nov 07 15:47:10 rak-gateway ttn-gateway[14332]: WARNING: [gps] read() returned value 0
Nov 07 15:47:10 rak-gateway ttn-gateway[14332]: WARNING: [gps] read() returned value 0
Nov 07 15:47:12 rak-gateway ttn-gateway[14332]: WARNING: [gps] read() returned value 0
Nov 07 15:47:12 rak-gateway ttn-gateway[14332]: WARNING: [gps] read() returned value 0
Nov 07 15:47:12 rak-gateway ttn-gateway[14332]: WARNING: [gps] read() returned value 0
Nov 07 15:47:13 rak-gateway ttn-gateway[14332]: WARNING: [gps] read() returned value 0
Nov 07 15:47:13 rak-gateway ttn-gateway[14332]: WARNING: [gps] read() returned value 0
Nov 07 15:47:13 rak-gateway ttn-gateway[14332]: WARNING: [gps] read() returned value 0
Nov 07 15:47:15 rak-gateway ttn-gateway[14332]: WARNING: [gps] read() returned value 0
Nov 07 15:47:15 rak-gateway ttn-gateway[14332]: WARNING: [gps] read() returned value 0
Nov 07 15:47:15 rak-gateway ttn-gateway[14332]: INFO: Received pkt from mote: D0021105 (fcnt=46037)
Nov 07 15:47:15 rak-gateway ttn-gateway[14332]: JSON up: {“rxpk”:[{“tmst”:174441444,“chan”:2,“rfch”:1,“freq”:868.500000,“stat”:1,“modu”:“LORA”,“datr”:“SF12BW125”,“codr”:“4/5”,“lsnr”:7.5,“rssi”:-92,“size”:23,“data”:“AAURAtB+1bNwZBICAACyGAB85RZ8rY8=”}]}
Nov 07 15:47:15 rak-gateway ttn-gateway[14332]: WARNING: [gps] read() returned value 0
Nov 07 15:47:15 rak-gateway ttn-gateway[14332]: INFO: [up] PUSH_ACK received in 31 ms
Nov 07 15:47:15 rak-gateway ttn-gateway[14332]: WARNING: [gps] read() returned value 0
Nov 07 15:47:15 rak-gateway ttn-gateway[14332]: WARNING: [gps] read() returned value 0
Nov 07 15:47:16 rak-gateway ttn-gateway[14332]: INFO: [down] PULL_ACK received in 30 ms
Nov 07 15:47:16 rak-gateway ttn-gateway[14332]: WARNING: [gps] read() returned value 0
Nov 07 15:47:16 rak-gateway ttn-gateway[14332]: WARNING: [gps] read() returned value 0
Nov 07 15:47:16 rak-gateway ttn-gateway[14332]: WARNING: [gps] read() returned value 0
Nov 07 15:47:18 rak-gateway ttn-gateway[14332]: WARNING: [gps] read() returned value 0
Nov 07 15:47:18 rak-gateway ttn-gateway[14332]: WARNING: [gps] read() returned value 0
Nov 07 15:47:18 rak-gateway ttn-gateway[14332]: WARNING: [gps] read() returned value 0
Nov 07 15:47:19 rak-gateway ttn-gateway[14332]: WARNING: [gps] read() returned value 0
Nov 07 15:47:19 rak-gateway ttn-gateway[14332]: WARNING: [gps] read() returned value 0
Nov 07 15:47:19 rak-gateway ttn-gateway[14332]: WARNING: [gps] read() returned value 0
Nov 07 15:47:21 rak-gateway ttn-gateway[14332]: WARNING: [gps] read() returned value 0
Nov 07 15:47:21 rak-gateway ttn-gateway[14332]: WARNING: [gps] read() returned value 0
Nov 07 15:47:21 rak-gateway ttn-gateway[14332]: WARNING: [gps] read() returned value 0
Nov 07 15:47:22 rak-gateway ttn-gateway[14332]: WARNING: [gps] read() returned value 0
Nov 07 15:47:22 rak-gateway ttn-gateway[14332]: WARNING: [gps] read() returned value 0
Nov 07 15:47:22 rak-gateway ttn-gateway[14332]: WARNING: [gps] read() returned value 0
Nov 07 15:47:23 rak-gateway ttn-gateway[14332]: WARNING: [gps] read() returned value 0
Nov 07 15:47:23 rak-gateway ttn-gateway[14332]: INFO: Received pkt from mote: D0021105 (fcnt=46037)
Nov 07 15:47:23 rak-gateway ttn-gateway[14332]: JSON up: {“rxpk”:[{“tmst”:182512260,“chan”:1,“rfch”:1,“freq”:868.300000,“stat”:1,“modu”:“LORA”,“datr”:“SF12BW125”,“codr”:“4/5”,“lsnr”:8.8,“rssi”:-99,“size”:23,“data”:“AAURAtB+1bNwZBICAACyGADbZp3qev8=”}]}
Nov 07 15:47:23 rak-gateway ttn-gateway[14332]: WARNING: [gps] read() returned value 0
Nov 07 15:47:23 rak-gateway ttn-gateway[14332]: INFO: [up] PUSH_ACK received in 34 ms
Nov 07 15:47:23 rak-gateway ttn-gateway[14332]: WARNING: [gps] read() returned value 0
Nov 07 15:47:23 rak-gateway ttn-gateway[14332]: INFO: Disabling GPS mode for concentrator’s counter…
Nov 07 15:47:23 rak-gateway ttn-gateway[14332]: INFO: host/sx1301 time offset=(1573141460s:482698µs) - drift=-74µs
Nov 07 15:47:23 rak-gateway ttn-gateway[14332]: INFO: Enabling GPS mode for concentrator’s counter.
Nov 07 15:47:23 rak-gateway ttn-gateway[14332]: ##### 2019-11-07 15:47:23 GMT #####
Nov 07 15:47:23 rak-gateway ttn-gateway[14332]: ### [UPSTREAM] ###
Nov 07 15:47:23 rak-gateway ttn-gateway[14332]: # RF packets received by concentrator: 4
Nov 07 15:47:23 rak-gateway ttn-gateway[14332]: # CRC_OK: 100.00%, CRC_FAIL: 0.00%, NO_CRC: 0.00%
Nov 07 15:47:23 rak-gateway ttn-gateway[14332]: # RF packets forwarded: 4 (92 bytes)
Nov 07 15:47:23 rak-gateway ttn-gateway[14332]: # PUSH_DATA datagrams sent: 5 (939 bytes)
Nov 07 15:47:23 rak-gateway ttn-gateway[14332]: # PUSH_DATA acknowledged: 100.00%
Nov 07 15:47:23 rak-gateway ttn-gateway[14332]: ### [DOWNSTREAM] ###
Nov 07 15:47:23 rak-gateway ttn-gateway[14332]: # PULL_DATA sent: 3 (100.00% acknowledged)
Nov 07 15:47:23 rak-gateway ttn-gateway[14332]: # PULL_RESP(onse) datagrams received: 0 (0 bytes)
Nov 07 15:47:23 rak-gateway ttn-gateway[14332]: # RF packets sent to concentrator: 0 (0 bytes)
Nov 07 15:47:23 rak-gateway ttn-gateway[14332]: # TX errors: 0
Nov 07 15:47:23 rak-gateway ttn-gateway[14332]: # BEACON queued: 0
Nov 07 15:47:23 rak-gateway ttn-gateway[14332]: # BEACON sent so far: 0
Nov 07 15:47:23 rak-gateway ttn-gateway[14332]: # BEACON rejected: 0
Nov 07 15:47:23 rak-gateway ttn-gateway[14332]: ### [JIT] ###
Nov 07 15:47:23 rak-gateway ttn-gateway[14332]: # SX1301 time (PPS): 182674168
Nov 07 15:47:23 rak-gateway ttn-gateway[14332]: src/jitqueue.c:448:jit_print_queue(): INFO: [jit] queue is empty
Nov 07 15:47:23 rak-gateway ttn-gateway[14332]: ### [GPS] ###
Nov 07 15:47:23 rak-gateway ttn-gateway[14332]: # Invalid time reference (age: 1573141643 sec)
Nov 07 15:47:23 rak-gateway ttn-gateway[14332]: # no valid GPS coordinates available yet
Nov 07 15:47:23 rak-gateway ttn-gateway[14332]: ##### END #####
Nov 07 15:47:23 rak-gateway ttn-gateway[14332]: JSON up: {“stat”:{“time”:“2019-11-07 15:47:23 GMT”,“rxnb”:4,“rxok”:4,“rxfw”:4,“ackr”:100.0,“dwnb”:0,“txnb”:0}}
Nov 07 15:47:23 rak-gateway ttn-gateway[14332]: WARNING: [gps] read() returned value 0
Nov 07 15:47:23 rak-gateway ttn-gateway[14332]: INFO: [up] PUSH_ACK received in 30 ms
Nov 07 15:47:23 rak-gateway ttn-gateway[14332]: WARNING: [gps] read() returned value 0
Nov 07 15:47:23 rak-gateway ttn-gateway[14332]: WARNING: [gps] read() returned value 0
Nov 07 15:47:25 rak-gateway ttn-gateway[14332]: WARNING: [gps] read() returned value 0
Nov 07 15:47:25 rak-gateway ttn-gateway[14332]: WARNING: [gps] read() returned value 0
Nov 07 15:47:25 rak-gateway ttn-gateway[14332]: WARNING: [gps] read() returned value 0
Nov 07 15:47:26 rak-gateway ttn-gateway[14332]: INFO: [down] PULL_ACK received in 30 ms
Nov 07 15:47:26 rak-gateway ttn-gateway[14332]: WARNING: [gps] read() returned value 0
Nov 07 15:47:26 rak-gateway ttn-gateway[14332]: WARNING: [gps] read() returned value 0
Nov 07 15:47:26 rak-gateway ttn-gateway[14332]: WARNING: [gps] read() returned value 0
Nov 07 15:47:28 rak-gateway ttn-gateway[14332]: WARNING: [gps] read() returned value 0
Nov 07 15:47:28 rak-gateway ttn-gateway[14332]: WARNING: [gps] read() returned value 0
Nov 07 15:47:28 rak-gateway ttn-gateway[14332]: WARNING: [gps] read() returned value 0
Nov 07 15:47:29 rak-gateway ttn-gateway[14332]: WARNING: [gps] read() returned value 0
Nov 07 15:47:29 rak-gateway ttn-gateway[14332]: WARNING: [gps] read() returned value 0
Nov 07 15:47:29 rak-gateway ttn-gateway[14332]: WARNING: [gps] read() returned value 0
Nov 07 15:47:31 rak-gateway ttn-gateway[14332]: WARNING: [gps] read() returned value 0
Nov 07 15:47:31 rak-gateway ttn-gateway[14332]: WARNING: [gps] read() returned value 0
Nov 07 15:47:31 rak-gateway ttn-gateway[14332]: INFO: Received pkt from mote: D0021105 (fcnt=46037)
Nov 07 15:47:31 rak-gateway ttn-gateway[14332]: JSON up: {“rxpk”:[{“tmst”:190583068,“chan”:1,“rfch”:1,“freq”:868.300000,“stat”:1,“modu”:“LORA”,“datr”:“SF12BW125”,“codr”:“4/5”,“lsnr”:9.0,“rssi”:-103,“size”:23,“data”:“AAURAtB+1bNwZBICAACyGADip5dbyqw=”}]}
Nov 07 15:47:31 rak-gateway ttn-gateway[14332]: WARNING: [gps] read() returned value 0
Nov 07 15:47:31 rak-gateway ttn-gateway[14332]: INFO: [up] PUSH_ACK received in 31 ms
Nov 07 15:47:31 rak-gateway ttn-gateway[14332]: WARNING: [gps] read() returned value 0
Nov 07 15:47:31 rak-gateway ttn-gateway[14332]: WARNING: [gps] read() returned value 0
Nov 07 15:47:32 rak-gateway ttn-gateway[14332]: WARNING: [gps] read() returned value 0
Nov 07 15:47:32 rak-gateway ttn-gateway[14332]: WARNING: [gps] read() returned value 0
Nov 07 15:47:32 rak-gateway ttn-gateway[14332]: WARNING: [gps] read() returned value 0
Nov 07 15:47:34 rak-gateway ttn-gateway[14332]: WARNING: [gps] read() returned value 0
Nov 07 15:47:34 rak-gateway ttn-gateway[14332]: WARNING: [gps] read() returned value 0
Nov 07 15:47:34 rak-gateway ttn-gateway[14332]: WARNING: [gps] read() returned value 0
Nov 07 15:47:35 rak-gateway ttn-gateway[14332]: WARNING: [gps] read() returned value 0
Nov 07 15:47:35 rak-gateway ttn-gateway[14332]: WARNING: [gps] read() returned value 0
Nov 07 15:47:35 rak-gateway ttn-gateway[14332]: INFO: [down] PULL_ACK received in 36 ms
Nov 07 15:47:35 rak-gateway ttn-gateway[14332]: WARNING: [gps] read() returned value 0
Nov 07 15:47:35 rak-gateway ttn-gateway[14332]: WARNING: [gps] read() returned value 0
Nov 07 15:47:37 rak-gateway ttn-gateway[14332]: WARNING: [gps] read() returned value 0
Nov 07 15:47:37 rak-gateway ttn-gateway[14332]: WARNING: [gps] read() returned value 0
Nov 07 15:47:37 rak-gateway ttn-gateway[14332]: WARNING: [gps] read() returned value 0

Your GPS antenna is in the open space and can receive GPS signal. From your picture, I found that your GPS antenna is indoors. Is it because of GPS signal problem?
As you can see from your log, the gateway did receive the upline data, but there was no downlink reply. You need to determine the three parameters of the node and make sure that the frequency points correspond to the gateway.

Good morning nicholas, thank you a lot for your help. The node is an Adeunis field tester that transmits the longitude and latitude as payload. The frequencies of both devices are configured to 868MHz and the node worked fine previously with an old Installation on RAK831. However it stopped now.

Can you tell me the content of the data you sent? Or did the node receive other error messages?

You need to look at the bottom of the global.json file, and you need to modify it.
image
You need to modify

127.0.0.1

become

> router.eu.thethings.network

Thank you for your help. I have just readded the Adeunis device and it’s working now. I’m sorry for the inconvenience. Now I am just stuck with the GPS module. I will try to put it outside to see if I’ll get a gps fix there. Best and thank you!

Well, maybe GPS can’t find it because of the reception. You can try it in an open area.