"At the device (win laptop) using wireless I get 399mbps download and 107mbps upload"
399 Mbps download & 107 Mbps upload, are these maximum speed measurements ?
Ideal conditions 2.4 GHz 802.11n Wi-Fi can support up to 300 Mbps for both download and upload speeds, depending on the router's capabilities. But older standard 802.11b may only achieve speeds of around 11 Mbps.
However, real-world speeds may vary due to factors such as interference, distance from the router, and the number of devices connected to the network. It is also important to note that the 2.4 GHz band is more prone to interference from other devices, which can further reduce actual speeds.
Ideal conditions, 5 GHz Wi-Fi can support much higher speeds compared to 2.4 GHz. For example, with the 802.11ac standard, 5 GHz Wi-Fi can theoretically reach speeds of up to 1.3 Gbps. With the newer 802.11ax (Wi-Fi 6) standard, even higher speeds are possible, with theoretical maximums of up to 9.6 Gbps / 9600 Mbps / 1.2 GBps 👀👀 In real-world throughputs ranging from 210 Mbps to 1 Gbps for 5 GHz networks, depending on the specific conditions and equipment used..
"While wired I get 900mbps download but less than 2 Mbps upload"
Can you tell me what LAN and Wi-Fi controller is in use on your laptop? How many devices are connected to 2.4 GHz & how many to 5 GHz?