Dear all,
In a lab setup, we configured rt2800 + hostapd to setup an access point
in 802.11n 5GHz with HT40. Even though there was no interference, we
could verify with a Wi-Spy that the network used in fact only a 20MHz wide
band and iperf showed very low throughput (approx. 10Mbps for a 10m
line-of-sight connection).
A similar setup in ad-hoc mode resulted in a 40MHz wide band used by the
network as is to be expected. Any ideas? Is this a (known) bug?
System:
Linux OpenWrt 3.3.8
driver: rt2800pci
Best regards,
Erwin
On Friday 25 January 2013 13:13:27 Helmut Schaa wrote:
> Maybe there were other APs around forcing hostapd to fall back to
HT20 (see
> ieee80211n_allowed_ht40_channel_pair in hostapd source code)?
No, the Wi-Spy did not detect any other activity in the channel.
Furthermore, testing with a commercial access point, it worked flawlessly
with HT40.
Best regards,
Erwin
On Fri, Jan 25, 2013 at 11:36 AM, Erwin Van de Velde
<[email protected]> wrote:
> In a lab setup, we configured rt2800 + hostapd to setup an access point
> in 802.11n 5GHz with HT40. Even though there was no interference, we
> could verify with a Wi-Spy that the network used in fact only a 20MHz wide
> band and iperf showed very low throughput (approx. 10Mbps for a 10m
> line-of-sight connection).
Maybe there were other APs around forcing hostapd to fall back to HT20 (see
ieee80211n_allowed_ht40_channel_pair in hostapd source code)?
Helmut