AX Wi-Fi Adapters Not Getting IPv6 Addresses

[BlaineKehl]

I am experiencing an issue that seems to be related to AX wi-fi adapters. I have experienced this issue on AX201 and AX211 adapters.

When joining a network the computer will get an IPv4 address but not an IPv6 address until I run the command ipconfig /renew6. The user who reported the issue said that they used to get an IPv6 address on their Dell Latitude 5420 but at some point recently that stopped.

I have tested the following devices:

• Dell Latitude E5450 with Intel Dual Band Wireless-AC 7265
• Lenovo Thinkpad T480S with Intel Dual Band Wireless-AC 8265. Device gets IPv6
• Dell Pro14 with Intel Wi-Fi 6E AX211. Device does not get IPv6
• Dell Latitude 5420 with Intel Wi-Fi 6 AX201. Device does not get IPv6

Troubleshooting so far includes:

• Ensured IPv6 is enabled on the adapter
• Ensured DHCPv6 client is enabled on the adapter
• Observed that adapter successfully generated link-local IPv6 addresses 
• Observed routing table contains only:
  • Loopback (::1/128)
  • Link-local (fe80::/64)
  • Multicast (ff00::/8)
• Installed Windows 11 26200.8457 (latest version) on a Dell Pro14
• Updated wifi driver from Intel 23.160.0.4 2025-07-21 to Intel 24.40.0.4 2026-04-13 (latest version)
• Disabled wireless adapter power-saving features
  • Set MIMO Power Save Mode to No SMPS
• Disabled U-APSD - disabled by default
• Temporarily disabled 802.11ax/Wi-Fi 6 mode
• Captured ICMPv6 Router Advertisements using Wireshark
  • I'm seeing router solicitations but no router advertisements until i run ipconfig /renew6
  • Here is a portion of my Wireshark capture:
    44  149.301587200    fe80::fa59:e5fa:5fab:d611    ff02::2    ICMPv6    62    Router Solicitation
    62     150.306826000    fe80::fa59:e5fa:5fab:d611    ff02::2    ICMPv6    70    Router Solicitation from 4c:0f:3e:40:f4:98
    85     151.309626000    fe80::fa59:e5fa:5fab:d611    ff02::2    ICMPv6    70    Router Solicitation from 4c:0f:3e:40:f4:98
    Ran ipconfig /renew6 command
    203    190.300856300    fe80::fa59:e5fa:5fab:d611    ff02::2    ICMPv6    70    Router Solicitation from 4c:0f:3e:40:f4:98
    204    190.306713900    fe80::a610:b6ff:fe06:99c0    fe80::fa59:e5fa:5fab:d611    ICMPv6    158    Router Advertisement from a4:10:b6:06:99:c0
    205    190.306715200    fe80::a610:b6ff:fe06:9940    fe80::fa59:e5fa:5fab:d611    ICMPv6    158    Router Advertisement from a4:10:b6:06:99:40

[JedG_Intel]

Hello BlaineKehl,

I understand that your devices are successfully obtaining IPv4 addresses but require manual intervention (ipconfig /renew6) to receive IPv6 addresses, and this functionality previously worked automatically on your Dell Latitude 5420. Your thorough troubleshooting efforts is really appreciated.

1. Perform a clean installation of OEM driver 24.20.0.4, A72 for Dell Latitude 5420.

2. Perform a clean installation of OEM driver 24.20.0.4, A72 for Dell Pro 14.

3. If the issue persists with both drivers above, please try temporarily rolling back to Intel driver version 23.160.0.4 to determine if this represents a driver regression.

4. Ensure there are no pending updates.

5. Update the BIOS to latest version 1.53.2, 1.53.2 and 1.14.1, 1.14.1.

If the issue persists, please share the additional information below for further investigation.

1. Is the adapter currently installed the original one that came with the system, or was it recently replaced or upgraded?

2. Have there been any recent changes made to the system?

3. Are you seeing any error messages? If so, please a screenshot.

I look forward to your response.

Best regards

Jed G.

Intel Customer Support Technician

[BlaineKehl]

Hi,

I have performed the additional troubleshooting steps as requested and the issue persists on the 5420 and Pro 14.

1. Is the adapter currently installed the original one that came with the system, or was it recently replaced or upgraded?

I am using the original adapters on all devices.

2. Have there been any recent changes made to the system?

By system do you mean the devices or the network?

3. Are you seeing any error messages? If so, please a screenshot.

There are no error messages

Thanks,

Blaine

[JedG_Intel]

Hello BlaineKehl,

Thank you for trying the recommended steps and for providing the requested information.

May I ask which access point you are currently using? Also, have you had a chance to test the issue with a different access point to help isolate the problem?

Additionally, since this involves laptops, could you please confirm if you have already contacted DELL support regarding this matter?

I look forward to your response.

Best regards

Jed G.

Intel Customer Support Technician

[BlaineKehl]

Hi,

We experience this issue with Cisco 9120 and 916x.

I have not contacted Dell yet. It seems like it would be related to the Intel cards doesn't it?

Thanks,

Blaine

[JedG_Intel]

Hello BlaineKehl,

Thank you for sharing this. Reaching out to the system manufacturer could also be helpful, they may provide additional insight or let us know if they’ve encountered similar reports with this laptop model.

In the meantime, I’ve sent you an email requesting the System Support Utility report so we can investigate this further on our end. Please check your inbox when you have a moment.

Best regards,

Jed G.

Intel Customer Support Technician

[BlaineKehl]

Hi,

I can contact Dell however the issue isn't limited to one laptop model.

Thanks,

Blaine 

[JedG_Intel]

Hello BlaineKehl,

I completely understand your situation, and no worries-I’d be more than happy to assist in investigating this issue for you. Please check your inbox and share the System Support Utility logs at your convenience so I can further analyze your system components and configuration.

Best regards,

Jed G.

Intel Customer Support Technician