Dell XPS 13 9340 Intel Core Ultra 5 125H WiFi Keeps Disconnecting Fix Windows 11

The WiFi connection on your Dell XPS 13 9340 Intel Core Ultra 5 125H drops frequently during use – websites fail to load, video calls disconnect, or the WiFi icon shows a limited connection warning before reconnecting. Intel AX211 WiFi driver issues and adapter power management settings cause WiFi disconnections on the XPS 13 9340.

This guide covers Intel AX211 WiFi driver updates, power management configuration, and network adapter settings to stop WiFi disconnecting on the Dell XPS 13 9340 Intel Core Ultra 5 125H in Windows 11.

“XPS 13 9340 WiFi dropped every 20-30 minutes. Video calls cut out. Intel AX211 driver from Dell Support fixed most issues. Disabling power saving in Device Manager stopped all remaining drops.” – Sharifah, remote worker from Seremban

Why WiFi Keeps Disconnecting on Dell XPS 13 9340

The Intel AX211 WiFi adapter has an aggressive power-saving mode that can disconnect from the access point when traffic is low, then reconnect when traffic resumes. For most users this 1-3 second reconnect is invisible, but for video calls and real-time applications, even a 1-second WiFi drop causes noticeable disruption. Intel WiFi driver versions also affect how the adapter manages roaming between access points, which can cause unexpected disconnects in environments with multiple access points sharing the same SSID.

• Intel AX211 power saving mode disconnecting adapter during idle intervals between data bursts
• Outdated Intel AX211 WiFi driver with known disconnection bugs on Windows 11
• Router and XPS 13 9340 WiFi 6E roaming between 5GHz and 6GHz bands causing handoff drops
• Windows 11 randomly switching to mobile hotspot or Ethernet if available, dropping the WiFi session

Fix 1 – Update Intel AX211 Driver from Dell Support

Go to dell.com/support, enter XPS 13 9340 service tag, and download Intel Wi-Fi 6E AX211 driver from the Network category. Install and restart. Dell-qualified Intel WiFi drivers for the XPS 13 9340 include connection stability patches and Intel-validated power management profiles. Updated Intel AX211 drivers resolve several documented WiFi drop scenarios on the Core Ultra platform including erroneous disassociation from access points after approximately 30 minutes of inactivity.

Fix 2 – Disable Intel AX211 Power Saving

Open Device Manager and expand Network adapters. Right-click Intel Wi-Fi 6E AX211 – Properties – Power Management. Uncheck Allow the computer to turn off this device to save power. Also go to Advanced tab. Find U-APSD support or 802.11n/ac/ax Power Management and set to Disabled. Set Transmit Power to Highest. These Advanced property changes prevent the AX211 from entering low-power radio states that cause disconnection events during low-traffic periods between data exchanges.

Force 5GHz or 6GHz Band

In Device Manager – Intel Wi-Fi 6E AX211 – Properties – Advanced tab. Find Preferred Band and set to 5GHz or 6GHz. On networks where both bands are available under the same SSID, the adapter may switch between bands during use, causing a brief disconnection during the band transition. Locking to 5GHz or 6GHz prevents band-switching drops while keeping the higher-performance bands active for the XPS 13 9340 WiFi 6E radio.

Fix 3 – Change Network Adapter Sleep Timer

Open Command Prompt as administrator. Run: netsh wlan set autoconfig enabled=yes interface=”Wi-Fi” to ensure WiFi auto-configuration is active. Also run: powercfg /setacvalueindex SCHEME_CURRENT 19cbb8fa-5279-450e-9fac-8a3d5fedd0c1 12bbebe6-58d6-4636-95bb-3217ef867c1a 0 followed by powercfg /setactive SCHEME_CURRENT. This sets the WiFi adapter sleep timer to zero, preventing Windows from putting the AX211 into sleep mode on the XPS 13 9340 during low-traffic periods.

Fix 4 – Reset TCP/IP Stack

Open Command Prompt as administrator. Run: netsh int ip reset followed by netsh winsock reset then ipconfig /flushdns. Restart. TCP/IP stack corruption after a Windows 11 update can cause WiFi connections to drop due to failed DHCP renewal or DNS lookup failures that the operating system interprets as WiFi disconnection. Resetting the network stack resolves these software-level disconnection causes that appear identical to driver or hardware WiFi drops.

Frequently Asked Questions

Why does WiFi keep disconnecting on Dell XPS 13 9340?

Intel AX211 power saving mode or outdated driver. Update Intel WiFi driver from Dell Support and disable power saving in Device Manager.

How do I fix WiFi disconnecting on Dell XPS 13 9340 Intel Core Ultra 5?

Update Intel AX211 driver from Dell Support, disable WiFi power saving in Device Manager, force 5GHz or 6GHz preferred band, reset TCP/IP stack.

What WiFi card does Dell XPS 13 9340 Intel Core Ultra 5 125H have?

Intel Wi-Fi 6E AX211 – WiFi 6E on 2.4GHz, 5GHz, 6GHz bands at up to 2.4Gbps. 6GHz band provides lowest interference for stable connections.

Can I replace the WiFi card in Dell XPS 13 9340?

Generally no – Intel AX211 uses CNVio2 connector proprietary to Intel platforms or is soldered. Driver and power management updates are the fix path.

Conclusion

Dell XPS 13 9340 Intel Core Ultra 5 125H WiFi disconnecting in Windows 11 is resolved by updating the Intel AX211 driver from Dell Support and disabling WiFi adapter power saving in Device Manager. Forcing 5GHz or 6GHz band preference prevents band-switching drops in multi-band environments. Resetting the TCP/IP stack clears network stack corruption that causes disconnections independent of radio driver issues. These steps provide comprehensive coverage of all common WiFi drop causes on the XPS 13 9340 platform.