DNS MQTT failures

I seem to be getting the following message repeatedly on my gateway node. Is there any way of getting more info out of the node, such as what it considers to be the DNS servers, what hostname it’s looking up, etc?

It was working months ago, but I haven’t been keeping an eye on. My network at home here is working great - 99.9% sure it’s not network related.

22:26:54 128 [mqtt] Connecting to MQTT server
[E][WiFiGeneric.cpp:724] hostByName(): DNS Failed for msh/1/stat/!336aa961
22:26:54 128 [mqtt] Failed to contact MQTT server…

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Sorry. Mqtt isn’t quite ready for most uses. I think it will be another month or two before it is.