ASL3 Reported node cannot be found!"

I am connecting to a existing hub in the cloud (2100) from my LAN. My IP has not changed in 4 years. 9 time out of 10 (a phrase, not a actual number) I can connect to 2100. Every once in a while I get this on the ASL console:

app_rpt.c:6572 rpt_exec: Reported node 459510 cannot be found!!

Nothing has changed, and on the next attempt I get a valid connection.
I am running apt_rpt in: node_lookup_method = dns

dig on the 2100 host returns a valid TXT record for 459510.
I sure don’t want to revert to the node list, and yes, I can do both.

73, Steve N4IRS