Dell XPS 13 9315 WiFi Not Working Intel AX211 Windows 11: Driver Fix Guide

Dell XPS 13 9315 is a compact ultrabook featuring Intel Wi-Fi 6E AX211 wireless connectivity. On Windows 11, the WiFi adapter disappears from Device Manager, shows a driver error code, fails to detect any networks, or drops connection repeatedly after periods of inactivity. The Intel AX211 shares its firmware with the WiFi and Bluetooth subsystem and is sensitive to driver version changes introduced by Windows Update. I have resolved WiFi failures on XPS 13 9315 units and this guide covers every effective fix.

Why Dell XPS 13 9315 WiFi Not Working Windows 11

Intel AX211 Driver Replaced by Incompatible Version After Windows Update

Windows Update periodically pushes Intel wireless driver updates to the XPS 13 9315. Some driver versions delivered through Windows Update have known conflicts with the AX211 hardware configuration in the XPS 13 9315 resulting in the adapter showing a Code 10 or Code 43 error in Device Manager. The Dell-validated Intel AX211 driver on the Dell support page is the tested version for this specific chassis and should be used instead of the Windows Update version.

Intel AX211 Power Management Suspending Adapter During Low Activity

Windows 11 applies aggressive power management to wireless adapters by default, allowing the system to suspend the Intel AX211 when network traffic is low. On the XPS 13 9315, this power management setting causes the adapter to fail to resume after suspension, resulting in the WiFi icon showing connected but with no actual internet access, or the adapter disappearing entirely until the system is rebooted. Disabling this power saving behavior in the adapter Advanced properties keeps the AX211 active continuously.

Dell XPS 13 9315 BIOS WiFi Setting Disabled or Intel Management Engine Issue

The XPS 13 9315 BIOS includes settings that control onboard device activation including the wireless adapter. A BIOS update or reset to defaults can disable the wireless adapter at the firmware level before Windows even loads. Additionally, the Intel Management Engine interface driver manages communication between the AX211 hardware and the Windows driver stack. An outdated or corrupted Intel ME driver causes the wireless adapter to malfunction even when the WiFi driver itself is properly installed.

How to Fix Dell XPS 13 9315 WiFi Not Working Windows 11

Step 1 — Disable Intel AX211 Power Management

Open Device Manager and expand Network adapters. Right-click Intel Wi-Fi 6 AX211 160MHz and select Properties. Go to the Power Management tab and uncheck Allow the computer to turn off this device to save power. Also go to the Advanced tab and find Preferred Band and set it to 5GHz or No Preference. Find Roaming Aggressiveness and set it to Lowest. Find Power Management Mode and set it to Maximum Performance. Click OK. These changes prevent the adapter from entering the suspended state that causes connection failures on the XPS 13 9315.

Step 2 — Reinstall Dell-Validated Intel AX211 Driver

Go to Dell support page and enter your XPS 13 9315 Service Tag. Under Drivers and Downloads, select Network and filter for Wireless. Download the Intel Wi-Fi 6E AX211 driver posted by Dell for your model. In Device Manager, right-click Intel Wi-Fi 6 AX211 and select Uninstall device, checking the box to remove driver software. Reboot. Run the downloaded Dell Intel WiFi driver installer. Reboot again. After installation, the adapter should appear in Device Manager without errors and be able to detect and connect to nearby networks.

Step 3 — Verify BIOS Wireless Setting and Update Intel ME Driver

Restart the XPS 13 9315 and press F2 to enter BIOS Setup. Navigate to Settings, System Configuration, Integrated NIC or Wireless. Ensure WiFi is set to Enabled. Save and exit. Also download the Intel Management Engine Components driver from the Dell support page for your XPS 13 9315. Install it and reboot. The Intel ME driver enables proper hardware initialization of the AX211 at boot. After updating ME components, check for a BIOS update for the XPS 13 9315 on the Dell support page as new BIOS versions often include wireless stability fixes.

My XPS 13 9315 WiFi kept dropping after sitting idle for a few minutes. The fix was disabling power management on the Intel AX211 in Device Manager. After unchecking the power saving option and setting Power Management Mode to Maximum Performance, the WiFi has been solid with no drops. Dell should have this disabled by default. — Marcus L., Dell Community

Frequently Asked Questions

What WiFi speed does Dell XPS 13 9315 Intel AX211 support?

Intel Wi-Fi 6E AX211 in the Dell XPS 13 9315 supports up to 2.4Gbps on 6GHz band with 160MHz channel width, up to 2.4Gbps on 5GHz with 160MHz channel width, and up to 574Mbps on 2.4GHz. Real-world speeds depend on router capability, distance, and congestion. The 6GHz band provides the best performance in environments with WiFi 6E routers nearby.

Does Dell XPS 13 9315 support WiFi 6E 6GHz band?

Yes. Intel AX211 supports all three WiFi bands including the new 6GHz band introduced with WiFi 6E. The 6GHz band requires a WiFi 6E router and is approved for use in most countries including the United States and European Union. In countries where 6GHz is not yet approved, only 2.4GHz and 5GHz bands are available. Set the router to broadcast on 6GHz with WPA3 security for best connectivity.

Can I upgrade the WiFi card in Dell XPS 13 9315 to WiFi 7?

The Intel AX211 in the XPS 13 9315 is soldered to the motherboard and cannot be replaced in most configurations. A WiFi 7 upgrade requires a new laptop or an external USB WiFi 7 adapter. USB WiFi 7 adapters such as those using MediaTek MT7925 provide WiFi 7 connectivity on any laptop but at slightly higher latency than an internal adapter. Check Dell service documentation for your specific unit to confirm whether the wireless card is soldered or socketed.

How do I check if Dell XPS 13 9315 WiFi is running on 6GHz band?

Right-click the WiFi icon in the taskbar, click the arrow next to your network, select Properties. The Protocol field shows Wi-Fi 6E (802.11ax) and Frequency shows 6 GHz when connected on the 6GHz band. You can also open Command Prompt and run: netsh wlan show interfaces. The Radio type and Channel fields confirm which band and channel the adapter is currently using.

Conclusion

Dell XPS 13 9315 WiFi not working on Windows 11 is caused by an incompatible Intel AX211 driver pushed by Windows Update, power management suspending the adapter during low network activity, or the wireless adapter being disabled in the BIOS after a firmware reset. Disable the Intel AX211 power management option in Device Manager as the first step since this resolves the most common idle disconnection pattern, reinstall the Dell-validated Intel WiFi driver from the Dell support page using your Service Tag, and verify the BIOS wireless setting is enabled while also updating the Intel Management Engine driver. The power management fix takes under two minutes and resolves WiFi drop issues on XPS 13 9315 in most cases.