So I'm at this new gig any they have a 1Gbps Internet feed. If I plug in a work built laptop (HP Win 10) I am seeing like 12Mbps down and 20Mbps. But if I get a fresh laptop that has not been built out I am seeing about 100Mbps down and as much as 400, even 600Mbps up. This is on the very same 1Gbps network port on a Cisco enterprise switch the WS-4510R-E. No errors seen at those ports. They run Trend Micro on their standard issue. Could that slow down speed tests that much? I'm testing against AT&T speed test but have tried a bunch of others and they all tell essentially the same story. There's also VMWare Horizon drivers on there and some other. Any thoughts on how to track down what's the party pooper for the network speeds?
What is the hardware specifications of your HP laptop?