Using "router.eu.thethings.network", as marked as the correct host in several of the issues here in the forum, does not work for me on my 'packet forwarder' experimental gateway.
I do get a correct 4-byte ACK on my UDP status push message, but on my TTN gateway page the "Last seen" does not update (i.e. just a date further and further back in time).
However, if I replace "router.eu.thethings.network" with "220.127.116.11" (an IP-address found here on the forum) it works well (i.e. I both get an ACK and the "Last seen" is updated).
So, I am a bit confused here; should I not use the named "router.eu.thethings.network" but instead the (to me more 'magical') IP-address of "18.104.22.168"?
And why do I get an ACK from "router.eu.thethings.network" when my status message sent there clearly is ignored?