Don't see frames from device

I don’t see any frames in my web UI of LoRaWAN gateway (made by Ebyte):

device settings:

The region is same for gateway and device, however, no frame was received or transmitted:

I tried to ask support of manufacturers, but it didn’t help. maybe someone here can help

Important note: I already connected this device to server (chirpstack) before, but after some downlink (i even don’t know why this downlink was sent) gateway stopped receiving frames

If you need more info, i can provide it

The actual model number of gateway and device would help substantially.

Blocking out the EUI’s is pointless and stops up checking online for status. You SHOULD have blocked out your “Secret Key”.

Settings for two frequencies in the gateway and a Tx & Rx frequency entry for the device raise suspicions that these aren’t really very compliant. There should be at least three, if not eight frequencies setup for the gateway.

But as you say, should actually show something in the gateway.

If Chirpstack sent a downlink, was it a Join Accept? Which may have changed the frequencies in a way that stopped the unknown device from working.

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sensor model is “Theta Wireless Corrosion Sensor DC110-HL” - Wireless Corrosion Sensor DC110-HL
gateway is [EBYTE E870-L470LG12]( E870-L470LG12_LoRaWAN Gateway_LoRaWAN_Modem_ )

gateway EUI - 012507018d7c1c4a

device EUI - cacbb80330018240

I can change secret key

actually there is advanced mode in gateway’s GUI, where many frequencies can be found

Last downlink was:

{“phy_payload”:{“mhdr”:{“f_type”:“UnconfirmedDataDown”,“major”:“LoRaWANR1”},“mic”:[43,5,128,146],“payload”:{“f_port”:null,“fhdr”:{“devaddr”:“0145b061”,“f_cnt”:1,“f_ctrl”:{“ack”:false,“adr”:true,“adr_ack_req”:false,“class_b”:false,“f_opts_len”:10,“f_pending”:false},“f_opts”:[{“LinkADRReq”:{“ch_mask”:[true,true,false,false,false,false,false,false,false,false,false,false,false,false,false,false],“dr”:5,“redundancy”:{“ch_mask_cntl”:0,“nb_rep”:1},“tx_power”:3}},{“PingSlotChannelReq”:{“dr”:3,“freq”:0}}]},“frm_payload”:null}},“tx_info”:{“context”:“dyffyw==”,“frequency”:868900000,“modulation”:{“lora”:{“bandwidth”:125000,“codeRate”:“CR_4_5”,“polarizationInversion”:true,“spreadingFactor”:8}},“power”:16,“timing”:{“delay”:{“delay”:“1s”}}}}