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Beginner
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Intel 7260HMW 802.11ac - WiFi LDPC coding Ubuntu

Hello,

I buy Intel 7260HMW ac adapter as a replacement for my laptop one band old one, I've planned to use it for troubleshooting wireless networks but now can't see any wireless packets in capture,

Looks like this adapter or my Ubuntu driver didn't support LDPC coding that now used in most devices. Can somebody tell is it physical issue or is it some way to update driver for LDPC support?

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Community Manager
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Hello Skliffi,

 

 

Thanks for posting LDPC is an optional feature in 802.11n and 802.11ac wireless protocols, so it's possible that some features are limited by the manufacturer even if the adapter supports it.

 

 

Please bear in mind that we don't recommend or support the integration of a wireless adapter without the assistance of your laptop OEM (Original Equipment Manufacturer). This could cause compatibility problems resulting in connectivity issues or lost of features:

 

 

- https://www.intel.com/content/www/us/en/support/articles/000005846/network-and-i-o/wireless-networki... Why Doesn't My Laptop Recognize My New Intel® Wireless Adapter?

 

- https://www.intel.com/content/www/us/en/support/articles/000005687/network-and-i-o/wireless-networki... Regulatory Information Regarding Wireless Hardware Installation or Upgrade

 

 

The drivers for wireless adapters on Linux* are developed through the Linux* community. We recommend checking with the Linux* wireless support or your operating system communities to confirm if LDPC is supported on your Linux* distribution:

 

 

- https://wireless.wiki.kernel.org/en/users/support Linux* Wireless Support

 

- https://www.ubuntu.com/support/community-support Ubuntu* Community Support

 

 

Best regards,

 

Eugenio F.
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Beginner
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Hello,

I've asked on HP support forum (which is vendor of my laptop) that this device are compatible with my laptop - and the answer was positive, wireless card is Intel OEM and this is fine with HP Probook 430 G1.

So I'm asking about exact Intel card and chipset - does it support LDPC itself?

If Yes, looks like this is linux driver issue and I need to write to linux community or switch to Windows. Does LDPC and monitor mode supported in Windows driver for 7260 AC?

Thank you for those links - I found that my and some other Intel cards will not be further supported in newest linux distributions.

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Community Manager
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Hello Skliffi,

 

 

Thanks for your reply.

 

 

Please allow us some time to investigate if the Intel® Dual Band Wireless-AC 7260 is complaint with LDPC. We'll be back with you as soon as we have updates.

 

 

Best regards,

 

Eugenio F.
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Community Manager
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Hello Skliffi,

 

 

We have confirmed that LDPC is not a feature of Intel® Dual Band Wireless-AC 7260 (7260HMW). This feature will not be added in the future as the adapter has reached https://ark.intel.com/products/75439/Intel-Dual-Band-Wireless-AC-7260 EOL (End of Life) status.

 

 

Please bear in mind that even though monitoring/sniffing is achievable through third party tools, we do not support it.

 

 

Best regards,

 

Eugenio F.
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Beginner
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Thank you Eugenio that taking the time to investigate my question!

This is very nice to hear exact answers.

Last question - you mention that monitoring is achievable through another tools, does it means that with some tool I can dump packets coded even with LDPC?

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Community Manager
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Hello Skliffi,

 

 

Some users have reported monitoring to be working on different wireless adapters. However, we can't provide further details as that's something we have not validated with Intel® Dual Band Wireless-AC 7260 or other models.

 

 

Best regards,

 

Eugenio F.
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