I resolved this on. I tried everything from resetting my network settings, downgrading back to iOS 15.... nothing worked. What I did was backup my iphone first, then I restarted my phone as if it were a new device. After doing this Siri did work perfectly as expected. However, it was like a new phone (no contacts photos music). I went through the restart process again, this time using my last backup. Siri worked and my phone was back to normal :)