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Why are devices not 'using' local gateway?

LoRa Basics™
#1

Hi,

This question must have been asked 100’s of times already but I can’t really find it.

I have several devices that are fairly close to a gateway (same building) but I see that 60+% of the time their msgs are picked up by some remote gateway. The difference in RSSI and SNR is huge, -42 and 14 vs -136 and -11) and there doesn’t appear to be any correlation with the channels. As a result the ADR doesn’t really switch the device to a more optimal DR; wasting BW and power.

So I have two questions:

  1. Why doesn’t the local gateway pick up all the traffic?
  2. Would it make sense to ‘fix’ the devices to a DR1 or DR2? Although that would compromise the redundancy.

If this has already been discussed in other posts please accept my apologies and feel free to provide link(s).

Cheers,

Erwin

#2

Sounds more like a LoRaWAN issue, than a LoRa issue.

If you dont get a reply in here, maybe ask the question in a support forum for the LoRaWAN application you are using.

#3

Oops, sorry.

Apologies for the noise.

Erwin

#4

Whose LoRaWAN network are you using ? If Helium, than this is normal. They simply select the gateway that serves up the Uplink to the router first. If this is not a Helium network, then I expect the gateway with the best RSSI to be selected consistently.

#5

Hi,

The issue is resolved. The network the the device joined with uses 64 channels but the gateway was set up for SB2 only.

Thanks for the response,

Erwin