Network controller drops internet connection often

Dom Valenzano 0 Reputation points
2025-09-18T00:52:18.5433333+00:00

Marvell Avatar Network Controller continually drops internet connection. Only solution is a forced shutdown. troubleshooting, deinstall options don't work.

Internet dropped 3 times in last 6 hours.

Help please

Surface | Surface Pro | Network
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  1. Dom Valenzano 0 Reputation points
    2025-09-19T20:12:08.2066667+00:00

    Screenshot (1)

    Success! I hope this works

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  2. Dom Valenzano 0 Reputation points
    2025-09-19T20:14:07.08+00:00

    Screenshot (2)

    Part two of my journey!

    When I access properties I don't see Power Management

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  3. John Carl Nazario 8,530 Reputation points Independent Advisor
    2025-09-19T20:34:15.85+00:00

    @Dom Valenzano
    Great! thanks for the update! I found some helpful threads from other Surface users having the same issue with the Marvell AVASTAR network controller. A few of them had success with this workaround, might be worth trying on your Surface Laptop 2:

    Kindly check this for reference: https://www.reddit.com/r/Surface/comments/pq284z/psa_if_youre_unable_to_connect_to_some_wifi/

    Try this driver update:

    Download this driver:

    Marvell Net Driver 15.68.17015.112

    (It’s a .cab file — allow pop-ups if needed.)

    Open the .cab file and extract the contents to a folder (you’ll need the .inf and .sys files).

    Right-click the .inf file and choose Install. Accept any warnings.

    Go to Device Manager > Network adapters >

    Marvell AVASTAR Wireless-AC Network Controller

    Right-click > Update driver

    Choose Browse my computer > Let me pick from a list

    Select the one labeled Marvell Semiconductor, Inc. (not Microsoft).

    Reboot your device.

    Let me know how it goes.

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  4. Dom Valenzano 0 Reputation points
    2025-09-20T20:09:33.13+00:00

    Downloaded the driver and my screen froze - working thru that now

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  5. Dom Valenzano 0 Reputation points
    2025-10-01T01:54:38.0433333+00:00

    my screen froze yet again - guess I'm stuck with hard restarts for the near future

    thanks for your help

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