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February 14th, 2023 10:00
Wifi not detected on Dell Micro Optiplex 7040
I have multiple Mini Dell 7040, The Wifi (mini card installed in the board) is not detected in the device manager.
I have tried resetting the network settings and driver installation via SupportAssist.
I do see the antenna male port in the back.
No Events found!
vishvajitd
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February 16th, 2023 23:00
If your Mini Dell 7040 is not detecting the Wi-Fi card in the device manager, there are a few steps you can try to troubleshoot the issue:
Check the BIOS settings: Make sure that the wireless card is enabled in the BIOS settings. Restart the computer and enter the BIOS by pressing the F2 key when the Dell logo appears. Navigate to the "Wireless" or "Integrated Peripherals" section of the BIOS and make sure that the wireless card is enabled.
Check the Wi-Fi card installation: Make sure that the Wi-Fi card is properly installed in the Mini Dell 7040. Turn off the computer and unplug it from the power source. Open the computer case and locate the Wi-Fi card. Check that it is securely connected to the motherboard and that any antennas are connected properly.
Update the Wi-Fi card driver: Go to the Dell support website and download the latest driver for the Wi-Fi card. Install the driver and restart the computer. Check if the Wi-Fi card is detected in the device manager.
Replace the Wi-Fi card: If the above steps do not resolve the issue, it is possible that the Wi-Fi card is faulty or damaged. You may need to replace the card with a new one.
If you have already tried resetting the network settings and driver installation via SupportAssist, you may want to try the steps above to see if they resolve the issue. If you still have problems, you may need to contact Dell technical support for further assistance.
zahidshah
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February 17th, 2023 14:00
Thank You much for the reply,
I have already installed the wireless driver and tge wireless device is also enabled in the bios.
The M2 Wlan is properly installed.
The problem is that all the 7040/50 minis have the same issue.
Even with a fresh Win 10/11 installation
optiplex22
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July 21st, 2024 01:52
@vishvajitd no, as with many linux picks it up but windows cant and wont even under support assistant. likewise on occasions a usb type will stop reboot like same as faulty ram does.
RoHe
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August 14th, 2024 18:26
@zahidshah - Open Device Manager and click View>Show hidden. Now look everywhere in DM for any "unknown" devices. Right-click and uninstall all "unknown" devices.
Next, click Action>Scan for hardware changes. Does the WiFi card appear under Network Adapters now?
If not, power off and disconnect power cord from rear of PC. Press/hold PC's power button for ~30 sec. Reconnect power cord to rear of PC and boot. Is WiFi card seen now?