Hello there, I have this dual band wireless adapter https://www.thinkpenguin.com/gnu-linux/penguin-wireless-n-dual-band-usb-adapter-gnu-linux-tpe-nusbdb and it uses AR9280 chipset for the 5GHz communication It’s using ath9k driver; I have Ubuntu 13.10 running 3.11 kernel and the adapter worked out of the box I’m using hostapd to configure the adapter as a software AP When I tried to configure the adapter as an AP on the 2.4GHz channels it worked fine When tried the 5GHz channels it gives me the following error > channel [1] (40) is disabled for use in AP mode, flags: 0x77 > wlan1: IEEE 802.11 Configured channel (40) not found from the channel list of > current mode (2) IEEE 802.11a > wlan1: IEEE 802.11 Hardware does not support configured channel In addition, iw list command shows that the 5GHz channels have the “passive scanning” and “no IBSS” flags I can associate with an AP on the 5GHz though How to solve that Thank you
Regards, Eng. Hosam Hittini
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