- Downloading drivers a good start. But you need to install them also.
- What does Device Manager say about the wifi device?
- Maybe you have totrun WiFi with the switch mentioned in https://www.dell.com/community/Laptops-General-Read-Only/Latitude-E5500-Wireless-Switch-turned-off/td-p/3570182 .
My Dell latitude e5440 lost its wifi after installing Windows. I downloaded all the drivers listed under my service tag from Dell website. Ethernet is working. My service tag is 5p8zg12

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