RAK4200 evaluation Error 99

NguyenHoang · December 16, 2021, 2:16am

Hi, i’m a newbie. I have a gateway( RAK2287 + RPi 4) and a RAK4200 Evaluation board (868Mhz). I want to setup a demo with built-in Lora ChirpStack Server , but when i send ‘at+join’ command, it always responds " error 99". Here is my settup :
Setup:

Gateway : I burned the lastest firmware following this guide RAK2287 Quick Start Guide | RAKwireless Documentation Center. I did not config much, just changed plan freq and Wifi-Client mode.

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end node : I burned the lastest firmware following this guide RAK4200 Evaluation Board Quick Start Guide | RAKwireless Documentation Center.

Server:

On server, I just created a device because there were few configurations already.

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Details:

Finally, I sent commands to Rak4200

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And result always is failed,
Anyone can help me, thank you!!

carlrowan · December 16, 2021, 6:39am

Welcome to RAK @NguyenHoang

Do you see join uplinks in the gateway traffic? when you send at+join command? How many times did you try to send at+join request? Is it always ERROR: 99 all the time?

carlrowan · December 16, 2021, 6:45am

If you see uplink join traffic in the gateway but failing, can you try to disable channels not used for join uplinks frequencies by sending this commands:

at+set_config=lora:ch_mask:8:0
at+set_config=lora:ch_mask:9:0
at+set_config=lora:ch_mask:10:0
at+set_config=lora:ch_mask:11:0
at+set_config=lora:ch_mask:12:0

When you send these, the activated channels will only be channels 0,1 and 2 which are the join frequencies. Then you can try again to at+join.

NguyenHoang · December 16, 2021, 7:46am

thanks for your help, I click on this tab but it’s spinning like this

I checked my antennas and I’m sure that it firmly connect

NguyenHoang · December 16, 2021, 7:50am

the first time, i set ApEUI is full of zero and the respond is ’ error 82 ’ so I change ApEUI is the same DevEUI but I get error 99 for 10 or … I don’t know… several times

carlrowan · December 16, 2021, 7:54am

APPEUI can’t be all zero in the RAK4200 so you got error 82.

Did you update the lora channel as I mentioned above? Then if you at+join, there is still no traffic in the gateway Live LoRaWAN Frames?

NguyenHoang · December 16, 2021, 8:01am

I did but it’s still error 99
Live LoraWan Frames is spinning, I don’t know what’s matter?

NguyenHoang · December 16, 2021, 8:37am

I received this antenna for my gateway

but on the store is this one (same with the end node)

Is that a mistake ?

carlrowan · December 16, 2021, 12:45pm

That PCB antenna should be ok. Do you see the label EU868?

The problem I think is still on the gateway side. The 'Last seen at` status of your gateway is never on the screenshot you sent. Even if you don’t have a device that is transmitting, that should be updating on its own. Are you sure your Gateway ID is correct when you added your gateway?

NguyenHoang · December 16, 2021, 1:58pm

I copy the ID from " sudo gateway-version" so I think it’s correct. Do I need change GW ID in global_config file? I did not do it because I think local_config overwrite on it?