I’ve had Chirpstack V3 running for ages with no issues. I added a second gateway on April 1st, no issues at all. I happened to take a look at some of the applications I have running and as of April 13th, I’m now seeing DATA_DOWN_ERROR errors showing up in the Errors graph. Since adding the gateway I haven’t made any other changes. Googling for this error didn’t yield any useful results.
What are these, and why would I suddenly start seeing them?