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Wi-Fi may not be available in WinPE when the computer is installed with an Intel BE200 or AX210 wireless card. Affected Platform: Dell Pro Slim QCS1250
The driver support for Direct Memory Access (DMA) is limited in WinPE. This impacts the BE200 and AX210 cards not working.
Follow this step to enable Internal Port DMA Compatibility Mode to resolve the issue. Turn on the computer and press F2 key repeatedly when Dell logo appears to go into BIOS setup. Enable Internal Port DMA Compatibility Mode . Note: When Internal Port DMA Compatibility Mode is enabled, BIOS notifies the operating system that the Internal ports are not DMA capable. Boot to WinPE. Wi-Fi module should load successfully.
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