Just to add to this, I’m an eero Secure user, and get the following:
dig plex.tv AAAA
; <<>> DiG 9.11.4-P2-RedHat-9.11.4-26.P2.el7_9.5 <<>> plex.tv AAAA
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: SERVFAIL, id: 29286
;; flags: qr rd; QUERY: 1, ANSWER: 0, AUTHORITY: 0, ADDITIONAL: 0
;; WARNING: recursion requested but not available
;; QUESTION SECTION:
;plex.tv. IN AAAA
;; Query time: 22 msec
;; SERVER: 1.1.1.1#53(1.1.1.1)
;; WHEN: Fri May 28 12:09:15 BST 2021
;; MSG SIZE rcvd: 25
The latest release 1.23.2.4600 seems to have resolved the issue without any changes to my eero setup.
