No LoRaWAN-Frames

[GustlDE]

Hi,

I am new to LoRaWAN and ChripStack.

I have a Mikrotik wAP LR8 and a ChripStack v4 Server (on Ubuntu 22.04).
Both are in the LAN-segment, no routing, NAT etc. in between.

1.) I see in the MT-Gateway a few LoRa-Frames and they get forwarded to the server

2.) I see my Gateway “online”

3.) But there is nothing under “LoRaWAN frams” in the Gateway-Sction

I can let this page open for hours, nothing.
I tested different hosts and a different browser. Always the same, no entries.

How can I check if this is simply a bug on this webpage or if there is a problem with my installation? I followed 1:1 the steps from here: Debian / Ubuntu - ChirpStack open-source LoRaWAN® Network Server documentation

I have verified with Wireshark that the Gateway sends the IP-Packets (destionation port UDP/1700) to the ChirpStack-server.

I am now out of ideas what I could do…

[GustlDE]

Additional info:

I testet:
mosquitto_sub -v -t “+/gateway/#”
and
sudo tcpdump -AUq port 1700

It seems the packets arrive corrctly on the ChirpStack-server. But somehow wont make it further?!

[GustlDE]

For all who have the same problem:

The frames showed up the moment I got my first LoRaWAN-sensor. All other frames the Gateway catched seemd to be corrupt in a way Chirpstack does not display them. I found no documentation regarding how Chripstack is handling erroneous frames. But only “CRC OK” frames (shown in the gateway) show up in Chirpstack too.

[datnus]

Why have many corrupted packets?
How far is your node to gateway?