Hi, Many thanks to Jouni and you for the explanations. I started hostapd with -d, as suggested by Jouni, and the resulting log could confirm that the bandwidth was limited to 20MHz because another SSID was detected. I wish my neighbors, who all use channels 6 and 7 (with 20MHz bandwidth) could all switch to lower or higher channels, but I guess that won’t happen. As I wanted to experiment, I cheated a bit and could get 40MHz bandwidth. That’s fine. Anyway, I understand the point, so I stopped cheating and I’m back to 20MHz. Thanks again, and thanks for the great hostapd, -- Nicolas _______________________________________________ Hostap mailing list Hostap@xxxxxxxxxxxxxxxxxxx http://lists.infradead.org/mailman/listinfo/hostap