I cannot get the beacon successfuly in CLASS B mode

[supercoos]

Hi all

I think I have not receive a beacon successfuly,like blew picture shows

and I use the lora-net:lora_gateway 5.0.1 packet_forwarder4.0.1 anything without change except blew points 1、DEFAULT_BEACON_FREQ_HZ ->471500000 because my board is 470mhz suport 2、I use the lora_pkt_fwd/global_conf.json and add the blew points “gps_tty_path”: “/dev/ttyAMA0”, / GPS reference coordinates / “ref_latitude”: 0.0, “ref_longitude”: 0.0, “ref_altitude”: 0, / Beaconing parameters / “beacon_period”: 128, 3、now it can work well in class A mode，and I can get the right time by the DeviceTimeAns command 4、in 《LoRaMac-node-feature-class_b 》 I only enable the LORAMAC_CLASSB_ENABLED
5、where is wrong？

other question： 1、the gateway will answer two reply when I send A DeviceTimeReq command？

thank you very much best regards

[mcoracin]

Hello,

• Are the beacon parameters aligned between your end-node and the gateway, according to the LoRaWAN regional specification?
• Is your gateway actually sending the beacons? Do you have a way to monitor that the beacon is being sent?
• Could you attach few minutes of your packet forwarder logs, from the startup to, lets's say, 4 minutes later, the time to sent 2 beacons...?