The Intel Wi-Fi 5100 AGN is an OEM mini PCI Express card seen in laptop machines like our Lenovo T500,
- PCI Express based
- 802.11n (incompatible)
The reason we deem the 5100 to be incompatible with 802.11n is that the card was released based on the first draft of the standard rather than the complete standard which was slow to be ratified.
Due to the incompatibility with the 802.11n standard, we are justified in wanting a firmware update to make the device work properly but no such firmware was every released.
So we believe Intel make false statements with the product name which is falsely compatible with 802.11n. Due to a whitelist we cannot replace the Intel Wi-Fi 5100 AGN which means Lenovo and Intel are both culpable as to making false representations.
With 802.11n compliant access points the Intel Wi-Fi 5100 AGN works with 802.11g at 2.4 GHz and 802.11a when connected at 5 GHz. The overall performance depends largely on the capabilities of the access point,
With 802.11ac access points the Intel Wi-Fi 5100 AGN generally connects with the same as the 802.11n access points.
With 802.11ax access points the Intel Wi-Fi 5100 AGN generally connects with the same as the 802.11n access points.