Cannot join using OTAA through a Mikrotik LoRa8kit

[LasaleFamine]

Summary

I'm using The Things Network's arduino-device-lib with a custom node using an Arduino Nano and everything is fine when the device is connected to the stack using a The Things Gateway. I'm also able to receive uplink from the Mikrotik AFTER the device joined the network through The Things Gateway. The problem is when I try to join using the Mikrotik: I can see the join request, but the device is not actually joined and retries forever.

Steps to Reproduce

1. Connect the Mikrotik router to The Things Stack
2. Try to join with a device using OTAA

Gateway config

Device config

What do you see now?

A repetitive try from the device to join the network without success

What do you want to see instead?

A successful join accept and the first payload from the device

Environment

ttn-lw-cli version

The Things Network Command-line Interface: ttn-lw-cli
Version:             3.8.2
Build date:          2020-06-03T08:09:40Z
Git commit:          a5b0a3895
Go version:          go1.14.4
OS/Arch:             darwin/amd64

Stack version v3.8.2 ...

How do you propose to implement this?

N/A

How do you propose to test this?

I can help testing with my gateway

Can you do this yourself and submit a Pull Request?

I don't think so!

[KrishnaIyer]

@LasaleFamine:

1. Please update to 3.8.4 as we had issues with downlinks in 3.8.1 and 3.8.2
2. What does your gateway log say?

[LasaleFamine]

Hi @KrishnaIyer, I have updated to 3.8.4, but nothing changed.

I can see the join-request on the Mikrotik, but actually I can't see a join-accept TX request, even if the stack console on gateway logs shows this:

And this is the join-request on the Mikrotik:

[KrishnaIyer]

Which gateway actually receives the downlink? Are there other gateways around? And please look for relevant lines in the server logs.

[LasaleFamine]

Currently I have only the Mikrotik up and running connected to my stack, I'm pretty confident there aren't other gateways (not mine) around here, but I don't know if you mean this.

In attached server logs of the join request. logs-stack.log

[KrishnaIyer]

Ok so from the logs it's clear that there's only one gateway mikrotik-via-casmene and the downlink is actually sent from the server. What gateway server settings are you using? The config options start with gs.

[LasaleFamine]

Sorry where can I check the gateway server setting? Is that a stack configuration?

[LasaleFamine]

Hi @KrishnaIyer, sorry for the double post, but do you have any updates on this?

[KrishnaIyer]

Yeah so can you check your gateway server settings? Yes indeed it's stack configuration.

[LasaleFamine]

I'm afraid I can't find this kind of configuration about the gateway server. Can you please be more specific on where I can find them and what we are searching?

[LasaleFamine]

I think I have some updates: I have tried the Mikrotik gateway also with thethingsnetwork.org and I have actually the same problem, I can see the "Activation" uplink and other retries, but seems like that the Mikrotik is not able to schedule the join-accept for the device.

I have tried with a TheThingsUno with a super basic sketch "SendOTAA" from thethingsnetwork Arduino Lib, I'm starting to think that could be a defect on the gateway itself, what do you think?

[KrishnaIyer]

Hmm it could be due to a wrong frequency plan configuration?

[LasaleFamine]

I don't have much configurations on the gateway panel itself so I really don't know what to try. I'm waiting a response from my reseller (which official for Mikrotik) so maybe I can try another gateway.

Do you have some hint on what configuration I should check by the way?

[KrishnaIyer]

Ok I'm not sure of that actually. Since this seems to be related to the gateway and not the stack, I'll close this for now. Please feel free to re-open if you have issues connecting to the stack.

For more help on the gateway itself, I recommend checking the Slack/Forum