Talked Over by Boss

Today, I spent all morning prepping for an afternoon meeting that I believed I was running. It is possible that I misunderstood, but I thought my boss had said that she wanted me to take charge and she would just be there if I needed anything. I had a whole agenda mapped out, and was confident with my plan. The meeting started, and almost immediately after we all said "Hello", my internet glitched, and I was booted from the Zoom. I logged back on immediately, and was absent for maybe a minute. When I returned, my boss was talking. Not wanting to interrupt, I patiently waited for her to hand over to me. She never did. The most I got was a couple of seconds to add a small comment, and then she would begin talking again. I wonder if she mistook the internet glitch for my being in trouble and needing her to intervene. But the thing is, this is not the first time this has happened. Whenever she says she wants me to be in control of a meeting, she ends up taking over. We also have very different styles of running meetings. I like to prep everything, set agendas and make presentations. She is a fan of "just winging it." Consequently, whenever she interrupts, it completely throws me off and I have trouble getting back on track. How do I address this issue with my boss?