TTIG does not support downlinks when not frequently receiving uplinks?

[arjanvanb (Arjan)]

@KrishnaIyerEaswaran2

we’re going to deploy another update where the server supports WebSocket Pings. This will keep TTIG connections alive even when there’s no upstream data. The ping interval is set to 30s.

Krishna, apparently this does not work for all TTIGs, or some regression has occurred since February? A few instances that seem related:

@dellekom

One works fine, the other one loses its connection very often, for many hours. Admittedly where it sits are not many packets around (pretty sure it is the most southern GW in Germany) but I would expect it to hold the connection to the Things servers.

@kersing

My TTIG still disconnects when there is no LoRaWAN traffic so the change doesn’t work for all devices…

@Martin_Kautenburger

I have the disconnect problems since a month or more with my 3 gateways.

…for which on Slack some more details are given:

@Martin_Kautenburger 2020-05-07 11:31 PM

Hi, i own 3 TTIG, the devices disconnects a few times a day. A few month ago the ttig works very good. But now it is not usable. I see on ttnmapper there are many ttig with the same problem.