Rx2 timeout Error

[kranthisai]

Hi,
I get Rx2 timeout error. I followed the instructions from here for initial setup. Here is my lora_node.py
`

#!/usr/bin/env python3
from rak811 import Mode, Rak811

lora = Rak811()
lora.hard_reset()
lora.mode = Mode.LoRaWan
lora.band = 'US915'
lora.set_config(ch_mask = '0,FF00')
lora.set_config(ch_mask = '1,0000')
lora.set_config(ch_mask = '2,0000')
lora.set_config(ch_mask = '3,0000')
lora.set_config(ch_mask = '4,0000')
lora.set_config(app_eui='70BXXXXXXXXX',app_key='EB37CXXXXXXXXXXXXXXXXXXXXX')
lora.join_otaa()
lora.dr = 5
lora.send('Hello world')
lora.close()

`

LoRa Gateway is up and can see online in things network.

[ryanteck]

Hi @kranthisai , I believe we got a ticket which we were looking into. However we'll move it to here for quicker response.

Typically this issue is caused by the node not receiving a response from the Gateway, on the TTN console are you seeing any data on the Log? (Ideally if you could post a screenshot of the traffic that would be ideal).

Could you try moving the ch_mask lines underneath the line where you set your keys at the same time to see if that resolves the issue.

[shawaj]

@ryanteck yep I asked @kranthisai to post it here instead so you could see it as well :-)

[kranthisai]

Thanks @ryanteck @shawaj for quick response.

I dont see any traffic in the Gateway Logs

I moved the lines ch_mask underneath keys, same output.

[ryanteck]

Hmm ok, that's interesting.

Could you try changing the line with '''lora.dr''' from 5 to 3 and try that?

I think that could be why and seems to be someting we missed from the documentation.

[kranthisai]

Actually I tried that before. I just tried again. same issue. Also tried to move lora.dr above join_otaa().

[ryanteck]

Hmm, it should be 3 for US so I'd keep it at that for now as 5 won't work.

As for being above otaa I don't think that would work.

Is your gateway in the same room as the node? Is it setup for the correct region plan for TTN too?

Thanks

[kranthisai]

Yes, Gateway is in same room. Both are setup for us-west region.

[ryanteck]

Ok so shouldn't be range issues then.

What brand is your gateway / have you been able to confirm if your gateway is succesfully receviing data from other nodes?

[kranthisai]

We are using MokoSmart Gateway. Yes, We see the data from other sensors.
Here is the traffic from other sensors.

[ryanteck]

Ok that's handy to know. Looks like it's on the same plan. (As not all US gateways use the same channels).

I do see that it's using SF9 the other sensor so a DR of 1 might be worth trying.

For debugging I would also usually ask that you try the ABP example as well as sometimes it's easier to rectifiy the issue using ABP to then switch back to OTAA.

[kranthisai]

tried DR 1 , same error. I will try with ABP

[ryanteck]

Thanks, it's not a common error this and also being US915 is harder for us to debug being in Europe.

[kranthisai]

I tried with ABP, I dont see any issue in joining to network, however I dont see any gateway traffic

[ryanteck]

Hi @kranthisai ,

I will try to replicate this issue on Tuesday

[kranthisai]

Hi @ryanteck ,

Thanks. Let me know if you have any update.