I have been trying to configure my Raspberry pi 3 B+ as a 5Ghz access point but I'm unable to do so. Here is my hostapd
country_code=IN ieee80211d=1 ieee80211h=1 interface=wlan0 driver=nl80211 wpa=2 wpa_key_mgmt=WPA-PSK rsn_pairwise=CCMP wmm_enabled=1 ht_capab=[HT40][SHORT-GI-20][DSSS_CK-40] macaddr_acl=0 ignore_broadcast_ssid=0 auth_algs=1 hw_mode=a ieee80211n=1 require_ht=1 ieee80211ac=1 require_vht=1 vht_oper_chwidth=1 channel=36 vht_oper_centr_freq_seg0_idx=42
I get the following error
Failed to create interface mon.wlan0: -95 (Operation not supported) wlan0: interface state UNINTIALIZED->COUNTRY_UPDATE Could not set channel for kernel driver Interface initialization failed wlan0: interface state COUNTRY_UPDATE->DISABLED wlan0: AP-DISABLED hostapd_free_hapd_data: Interface wlan0 wasn't started nl80211: deinit ifname=wlan0 disabled_llb_rates=0
I also tried setting channel=0 and channel=acs_survey but I keep getting the same error. How do I resolve this error? What is the proper hostapd for configuring my raspberry pi 3 B+ as 5Ghz AP? Is it possible to utilize dual band(2.4Ghz and 5Ghz) of the raspberry pi for an AP simultaneously? If so please post the hostapd for that too. Thanks in advance.