Hi Mandy,
I have the same issue on any media I'm playing, when my internet connection gets erratic or there's heavy traffic on the network. Often times, I don't realize the internet issue on my phone, but I've now become accustomed to certain areas, times of day, etc as to when it is particularly acting up.
My Mac will show me but only if I click on the Wi-Fi signal itself. It goes from "Wi-Fi on, then searching for networks and repeats"
My ISP just tells me to wait. I usually reset my router or choose,a different network however, to help with any lags or pausing issues ~