Siri not adding items to grocery list from HomePod to iPhone 16 Pro Max

I've synced the Apple Home apps on iPad and iPhone (I noticed they were out of sync). A software update on HomePod was done today. Both devices are using the same network. I've restarted/reset my phone and the HomePod. "Personal Requests" are enabled and now synced. Bluetooth/Wifi are enabled on iPad/phone. The iCloud key chain is enabled on all devices. I'm using the same Apple account for all devices. Our Wifi signal has three bars indicating a strong signal. Both devices have sufficient iCloud storage space.

I've spent all day trying to figure this out and will appreciate any questions to clarify my conundrum an/or suggestions.

[Re-Titled by Moderator]

Original Title: Using my iPhone 16 Pro Max, Siri will add an item to my grocery list. Using my HomePod, Siri will not saying: "I am having problems reaching iPhone, check that it's powered on (Yes, the power is on.) How do i resove?