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stidentseven
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August 6th, 2020 22:00
E5440 does not detect WiFi
My Latitide E5440 was working perfectly well, when suddenly the wifi would not work. I updated drivers including BIOS update. But the system does not detect WiFi Card. BIOS does not have any record and displays {none} for Wifi.
The system is equipped with following wireless devices:
- WLAN: Intel Dual Band Wirelerss-AC 7260; Model: 7260HMW
- WWAN : Sierra Wireless AirPrime DW5570
Any help would be appreciated.
DELL-Cares
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Posted August 7th, 2020 16:00
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stidentseven
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Posted August 14th, 2020 13:00
Well, after many efforts by enabling/disabling connections in BIOS, I finally managed to get it resolved it.
I first uninstalled my WWAN broadband driver and then removed the modem (hardware). Now when I switched on the laptop, it recognized my wifi WLAN in BIOS. I booted and Windows 7 auto installed appropriated drivers.
I shut down the system, connected back the broadband modem, and the system identified it correctly. I installed the WWAN driver and now both WLAN and WWAN are functioning correctly.
regards