No internet connection in 5G coverage.

[Vaio165]

I have a Motorola One 5G and I am having a issue with it when I am in 5G coverage. My 4G 100% works with no issues. But when I am in some 5G coverage when I try to go on to the Internet it will say No Internet Connection or it will load very slow. The phone will have the 5G icon at the top of the phone. The phone can receive and send texts and phone calls. So what could the issue be? The Network,Sim Card,The Phone?