my vCenter performance overview network usage shows very little usage. it has spikes of about 1000k, but mostly less (and a max of ~1200k.) however, in my windows 2019 vm, the Performance monitor shows ~10 Mbps. to complicate things, my firewall says the top talker is the same windows 2019 vm and it is using ~10Mbps. so the windows vm and the firewall agree on the bandwidth usage and the vcenter doesn't see it using much bandwidth at all.
i've tried limiting the bandwidth on the network card through vcenter traffic shaping, but since the vcenter doesn't see the traffic, it doesn't use those limits.
why doesn't vcenter see the traffic? how is that possible and what can i do about it?