When I connect my laptop computer to my router via 5G, the download speed is about a 100 Mbps slower than when I connct directly to my T-Mobile gateway and is about 150 Mbps slower when connected at 6Ghz, and when I connect my desktop computer to the router directly via hardwire, it's about 250 Mbps slower. 

The laptop is running Windows 11 and the desktop is running Windows 10.

Any solution to this?