page contents

802.11n Pci-e Nic |top| - Realtek 8723de Wireless Lan

Internal Half MINI PCI-E Design:Internal half MINI PCI-E design ensures a sleek, space-saving fit for laptops and other devices.,, RTL8723DE - Realtek

With interference from neighbors’ Wi-Fi: speeds can drop below 20 Mbps.

| Problem | Likely Fix | |---------|-------------| | Wi-Fi keeps disconnecting | Disable “Allow computer to turn off this device” in Power Management; update driver; disable Bluetooth coexistence in driver settings. | | Bluetooth mouse stutters | Switch Bluetooth to 5 GHz Wi-Fi (not possible on 8723DE) – workaround: use 2.4 GHz Wi-Fi channel 1 or 11, reduce interference. | | Adapter missing after sleep | Disable Fast Startup in Windows Power Options. | | Low speed (below 50 Mbps) | Ensure router’s 2.4 GHz is set to 40 MHz channel width, WPA2 only, no b/g legacy devices. | | Linux not detecting Wi-Fi | Install rtl8723de driver from GitHub, blacklist rtl8xxxu . | realtek 8723de wireless lan 802.11n pci-e nic

PCI Express (PCI-E) for WLAN and a USB interface for Bluetooth.

For :

No official support; Hackintosh users generally replace the card.

Realtek provides drivers, but Windows Update often installs buggy generic versions. Internal Half MINI PCI-E Design:Internal half MINI PCI-E

Article last updated: 2026 – reflects current driver status and replacement viability.