Macbook connects to iPhone Hotspot but no internet connection

I've had issues connecting to my iPhone Hotspot since I got this MacBook (MacBook M1 Air 2020) in 2021. It will connect just fine but there will be no internet connection, so I just haven't been able to use it on the go without connecting to public wifi.

I have T-Mobile and am on their best plan with 250GB of Hotspot per month (I use less than 5GB of it) and recently added a line for a work phone which is a Razr Ultra 2025. My MacBook connects to the Razr Hotspot just fine and it is super fast. I can also connect my Razr to my iPhone Hotspot and it works like it should.

What would the reason be why my MacBook won't properly connect to my iPhone Hotspot but works just fine with my Razr Ultra that is on the same exact phone plan with the same amount of Hotspot data limit per month?

I've tried all the troubleshooting steps I've seen on similar posts and it will not let me access the internet. It gives me the DHS error code saying there is no internet connection. Also, my iPhone (iOS 18.5) and my MacBook (macOS Sequoia 15.5) are updated to the latest software.

Uploading this currently using my Razr Ultra Hotspot.