Greetings, I'm having a hard time solving this one.

The issue started recently, I noticed it yesterday. System is Windows 11 21H2, Windows is up to date, BIOS is up to date, Dell Command Update app says everything is up to date. When I perform a download speed test on fast.com the speed is ~10 Mbps. While browsing I notice this is accurate.

• All web browsers are affected
• I have the same low speed on both Ethernet and Wireless
• Upload speed is not affected, I get ~300Mbps which is the expected speed, only download is affected
• My phone or any device on the Wi-Fi gets full Wi-Fi speed (~150 Mbps)
• If I plug in another laptop on the same ethernet cable I get full speed (~800 Mbps)
• If I launch a chrome browser through WSL2 on my laptop I get full speed in this browser (~800 Mbps), while any native browser in Windows gets low speed

I tried a lot of things but still no solution

• I don't have smartbyte installed, no service with this name
• Tried with all USB devices / Bluetooth disconnected, no change
• Tried performing network reset
• Tried uninstalling both Wi-Fi and Ethernet devices, no change
• Tried resintalling Ethernet/Wi-Fi and Bluetooth drivers, no change
• Both connections "Metered connection" setting is disabled
• Tried changing  Window Auto-Tuning Level value, no change (set it back to normal)
• Tried to disable Large Send Offload setting in adapter configuration, no change
• Tied to configure QoS Packet Scheduler / Limit Reservable bandwidth to 0, no change

The most confusing thing is when I use chrome in the WSL environment I have full speed, so it must be something related to windows network configuration that limits my download speed and I can't find it.

Any suggestions ?