Try switching the extended security to off as a test?
Search found this
https://community.roonlabs.com/t/bt-smart-hub-2-ipv6-will-prevent-port-forwarding-ticket-in-workaround-disable-ipv6/204305/42?u=ged_hickman1
Try switching the extended security to off as a test?
Search found this
https://community.roonlabs.com/t/bt-smart-hub-2-ipv6-will-prevent-port-forwarding-ticket-in-workaround-disable-ipv6/204305/42?u=ged_hickman1