I'm a total OpenWRT newbie. I just installed it on my D-Link DSL-2750u C1 and I'm trying to use it as an AP but my problem is that OpenWRT is only detecting Wifi B\G but not 802.11n although the hardware itself has support for 802.11n. Any help would be greatly appreciated.
There is no
HT support in
b43, which would be required for 802.11n - and
brcmsmac doesn't support AP mode. The (well known- and documented) joys of Broadcom hardware.
It's also a 32mb device, and https://openwrt.org/supported_devices/openwrt_on_432_devices applies.