Wifi Trouble with Marvell AVASTAR Wireless-AC Network Controller

See if PSA: If you're unable to connect to some WiFi networks on your SB2, follow these instructions : Surface (reddit.com) helps. There have been other reports of issues with the Marvell driver with WPA3 and WPA3-WPA2 mixed.

Thanks - i tried what was listed in the reddit slide ( both Uninstall and also installing new driver 15.68.17015.112 ) - but it does not work.

Its very disappointing - that MS will leave this dry without supporting their delivered drivers.

This is my only work device and its not working with selecting WiFi SSID - but works with my phone hotspot is very annoying...

can revert to Windows 10 will work ?Any other options to try ? Please assist.

I don't think that using Windows 10 would make a difference (and you would need to wipe and reimage to do this if you installed 11 more than ten days ago).

What is the brand and model of the new router you are having issues with?

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Hi Barb,

Thanks for the support and assistance - much appreciated. The new modem i have is from Telstra (service provider).

Modem make: Technicolor

Modem model: CobraXh

The security modes offered are

I understand WPA2 PSK is no longer supported in Windows - hence i am struck now with not able to use surface at all. Is there any other options - i am sure i am not the only one with this issue?

Will complete reimage work or WiFi dongle ? i dont want to spend another $$$ for just this issue. Hope you can assist further. thanks again for all the assistance offered.

Cheers

Ganu

Ganu,

You certainly CAN use WPA2. I am currently connected using WPA2 on Windows 11

I'm wondering if you are using the same SSID name as I believe this modem/router out of the box does not have separate names for the 2.4 and 5GHz bands. You should try renaming one of the SSIDs first. If that does not work, then try WPA2 (and make sure the SSIDs still have separate names).

Thank you so much Barb - much appreciated. Its working now.

I updated the Modem SSID to be split into 2.4 and 5 Ghz. The Surface is connecting only to 2.4 Ghz and its working. Tried changing the security mode to WPA2 and WPA2-WPA3 - it works in both.

Looks like its the Band - causing the issue - strangely. Not sure why though. Any thoughts ?

Anyway thanks a lot - seems to be working for now - will see how it goes in next few days.

How to prevent automatic network driver update in Windows 11?

Can you manually set the 5GHz channel in that modem/router admin interface? If yes, you can try changing the 5GHz channel.

As for blocking the update, try this tool https://download.microsoft.com/download/f/2/2/f22d5fdb-59cd-4275-8c95-1be17bf70b21/wushowhide.diagcab 

Here is a video on how to use the Show/Hide tool

How to Use wushowhide To Hide Windows Updates - YouTube