This is a classic Altobeam power management bug. Revisit the Power Management tab and also disable “Fast Startup” in Windows:

You can find the specific AltoBeam drivers on several trusted driver database sites:

Some Altobeam adapters work with :

Use a tool like Speedtest by Ookla. Your Altobeam 802.11n adapter should achieve 100–150 Mbps in ideal conditions. If you see below 20 Mbps, consider changing your router’s channel or updating the driver again.

Rarely. Windows Update may offer a generic “802.11n USB Wireless Adapter” driver, but not the exclusive Altobeam driver. You must check Optional Updates in Windows Update → Driver Updates, but don’t rely on it.

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