Just wanted to follow up with another multi-day session of Siri giving me the ” on it “ or “ still working “ in the past week (first week of June 2023). Every morning around the same time 8 AM (EDT) Siri would stop working for an hour or so on multiple Apple accessory devices (watches, HomePods, Apple TV) but would work fine on iPhones. Rebooting the Cable Modem would sometimes fix it but the next morning the issue would return for a few hours and then resolve. I want to be clear that all other Internet activity worked fine, it was just Siri that was affected. Remembering that I recently changed my Eero router DNS to use CloudFlare’s public DNS for IPv4 and IPv6, I decided to switch it to Google’s public DNS and issues with Siri immediately resolved. Will keep an eye on it, but it certainly is a weird issue to have especially when it affects multiple user accessory devices but not the iPhones.