There are two versions of the Netgear WNDA3100 - The WNDA3100-NAR (v1) and WNDA3100-NAS (v2).
Version 1 of the Netgear WNDA3100 contains the Atheros chipset and is supported by the ar9170.fw:
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Type: Posts; User: epretorious; Keyword(s):
Re: NETGEAR WNDA 3100 installed but can't send nor capture.
There are two versions of the Netgear WNDA3100 - The WNDA3100-NAR (v1) and WNDA3100-NAS (v2).
Version 1 of the Netgear WNDA3100 contains the Atheros chipset and is supported by the ar9170.fw:
...