I have 2 Win10 PCs, both with Wi-Fi 6 AX201 cards installed. Both connected to an AT&T BGW320-500 modem with 1Gbps fiber connection. When I do a speed test on either PC, it returns 970 Mbps or so up and down, but when I transfer a 1Gig file from one PC to the other over the network, 90% of the time it copies at less than 20MBps. The other 10% of the time it'll transfer at between 80-95MBps. I've tried switching channels, updating firmware, switching from 5GHz to 2.4GHz but that just makes it go even slower. I don't get why sometimes it's really fast, but most of the time it's considerably slower. Thanks for any help or suggestions!