Even though my area is set to India, the WiFi in luci settings defaults to USA. This causes my 160mhz to malfunction sometimes.
I am on the latest openwrt-24 build.
When IN is selected for 160mhz the network fails to start.
daemon.notice hostapd: ACS: Survey for freq 5500 is missing noise floor
Sat Feb 14 02:48:38 2026 daemon.notice hostapd: ACS: Survey for freq 5520 is missing noise floor
Sat Feb 14 02:48:38 2026 daemon.notice hostapd: ACS: Survey for freq 5540 is missing noise floor
Sat Feb 14 02:48:38 2026 daemon.notice hostapd: ACS: Survey for freq 5560 is missing noise floor
Sat Feb 14 02:48:38 2026 daemon.notice hostapd: ACS: Survey for freq 5580 is missing noise floor
Sat Feb 14 02:48:38 2026 daemon.notice hostapd: ACS: Survey for freq 5600 is missing noise floor
Sat Feb 14 02:48:38 2026 daemon.notice hostapd: ACS: Survey for freq 5620 is missing noise floor
Sat Feb 14 02:48:38 2026 daemon.notice hostapd: ACS: Survey for freq 5640 is missing noise floor
Sat Feb 14 02:48:38 2026 daemon.notice hostapd: ACS: Survey for freq 5660 is missing noise floor
Sat Feb 14 02:48:38 2026 daemon.notice hostapd: ACS: Survey for freq 5680 is missing noise floor
Sat Feb 14 02:48:38 2026 daemon.notice hostapd: ACS: Survey for freq 5700 is missing noise floor
Sat Feb 14 02:48:38 2026 daemon.notice hostapd: ACS: Survey for freq 5720 is missing noise floor
Sat Feb 14 02:48:38 2026 daemon.notice hostapd: ACS: Survey for freq 5745 is missing noise floor
Sat Feb 14 02:48:38 2026 daemon.notice hostapd: ACS: Survey for freq 5765 is missing noise floor
Sat Feb 14 02:48:38 2026 daemon.notice hostapd: ACS: Survey for freq 5785 is missing noise floor
Sat Feb 14 02:48:38 2026 daemon.notice hostapd: ACS: Survey for freq 5805 is missing noise floor
Sat Feb 14 02:48:38 2026 daemon.notice hostapd: ACS: Survey for freq 5825 is missing noise floor
Sat Feb 14 02:48:38 2026 daemon.notice hostapd: ACS: Survey for freq 5845 is missing noise floor
Sat Feb 14 02:48:38 2026 daemon.notice hostapd: ACS: Survey for freq 5865 is missing noise floor
Sat Feb 14 02:48:38 2026 daemon.err hostapd: ACS: Failed to compute ideal channel
Sat Feb 14 02:48:38 2026 daemon.err hostapd: Interface initialization failed
Sat Feb 14 02:48:38 2026 daemon.notice hostapd: wlan1: interface state ACS->DISABLED
Sat Feb 14 02:48:38 2026 daemon.notice hostapd: wlan1: AP-DISABLED
Sat Feb 14 02:48:38 2026 daemon.err hostapd: ACS: Possibly channel configuration is invalid, please report this along with your config file.
Sat Feb 14 02:48:38 2026 daemon.err hostapd: ACS: Failed to start
Sat Feb 14 02:48:38 2026 daemon.notice hostapd: wlan1: AP-DISABLED
Sat Feb 14 02:48:38 2026 daemon.err hostapd: hostapd_free_hapd_data: Interface wlan1 wasn't started
Sat Feb 14 02:48:38 2026 daemon.notice hostapd: nl80211: deinit ifname=wlan1 disabled_11b_rates=0
Sat Feb 14 02:48:38 2026 daemon.notice hostapd: wlan1: interface state DISABLED->DISABLED
When IN is selected for 160mhz the network fails to start.
daemon.notice hostapd: ACS: Survey for freq 5500 is missing noise floor
Sat Feb 14 02:48:38 2026 daemon.notice hostapd: ACS: Survey for freq 5520 is missing noise floor
Sat Feb 14 02:48:38 2026 daemon.notice hostapd: ACS: Survey for freq 5540 is missing noise floor
Sat Feb 14 02:48:38 2026 daemon.notice hostapd: ACS: Survey for freq 5560 is missing noise floor
Sat Feb 14 02:48:38 2026 daemon.notice hostapd: ACS: Survey for freq 5580 is missing noise floor
Sat Feb 14 02:48:38 2026 daemon.notice hostapd: ACS: Survey for freq 5600 is missing noise floor
Sat Feb 14 02:48:38 2026 daemon.notice hostapd: ACS: Survey for freq 5620 is missing noise floor
Sat Feb 14 02:48:38 2026 daemon.notice hostapd: ACS: Survey for freq 5640 is missing noise floor
Sat Feb 14 02:48:38 2026 daemon.notice hostapd: ACS: Survey for freq 5660 is missing noise floor
Sat Feb 14 02:48:38 2026 daemon.notice hostapd: ACS: Survey for freq 5680 is missing noise floor
Sat Feb 14 02:48:38 2026 daemon.notice hostapd: ACS: Survey for freq 5700 is missing noise floor
Sat Feb 14 02:48:38 2026 daemon.notice hostapd: ACS: Survey for freq 5720 is missing noise floor
Sat Feb 14 02:48:38 2026 daemon.notice hostapd: ACS: Survey for freq 5745 is missing noise floor
Sat Feb 14 02:48:38 2026 daemon.notice hostapd: ACS: Survey for freq 5765 is missing noise floor
Sat Feb 14 02:48:38 2026 daemon.notice hostapd: ACS: Survey for freq 5785 is missing noise floor
Sat Feb 14 02:48:38 2026 daemon.notice hostapd: ACS: Survey for freq 5805 is missing noise floor
Sat Feb 14 02:48:38 2026 daemon.notice hostapd: ACS: Survey for freq 5825 is missing noise floor
Sat Feb 14 02:48:38 2026 daemon.notice hostapd: ACS: Survey for freq 5845 is missing noise floor
Sat Feb 14 02:48:38 2026 daemon.notice hostapd: ACS: Survey for freq 5865 is missing noise floor
Sat Feb 14 02:48:38 2026 daemon.err hostapd: ACS: Failed to compute ideal channel
Sat Feb 14 02:48:38 2026 daemon.err hostapd: Interface initialization failed
Sat Feb 14 02:48:38 2026 daemon.notice hostapd: wlan1: interface state ACS->DISABLED
Sat Feb 14 02:48:38 2026 daemon.notice hostapd: wlan1: AP-DISABLED
Sat Feb 14 02:48:38 2026 daemon.err hostapd: ACS: Possibly channel configuration is invalid, please report this along with your config file.
Sat Feb 14 02:48:38 2026 daemon.err hostapd: ACS: Failed to start
Sat Feb 14 02:48:38 2026 daemon.notice hostapd: wlan1: AP-DISABLED
Sat Feb 14 02:48:38 2026 daemon.err hostapd: hostapd_free_hapd_data: Interface wlan1 wasn't started
Sat Feb 14 02:48:38 2026 daemon.notice hostapd: nl80211: deinit ifname=wlan1 disabled_11b_rates=0
Sat Feb 14 02:48:38 2026 daemon.notice hostapd: wlan1: interface state DISABLED->DISABLED
After switching back to 80mhz the network will work normally
daemon.notice hostapd: Set new config for phy phy1:
Sat Feb 14 02:54:00 2026 daemon.notice hostapd: Remove interface 'phy1'
Sat Feb 14 02:54:00 2026 daemon.notice hostapd: wlan1: interface state DISABLED->DISABLED
Sat Feb 14 02:54:00 2026 daemon.notice hostapd: wlan1: AP-DISABLED
Sat Feb 14 02:54:00 2026 daemon.notice hostapd: wlan1: CTRL-EVENT-TERMINATING
Sat Feb 14 02:54:00 2026 daemon.err hostapd: rmdir[ctrl_interface=/var/run/hostapd]: Permission denied
Sat Feb 14 02:54:00 2026 daemon.err hostapd: hostapd_free_hapd_data: Interface wlan1 wasn't started
Sat Feb 14 02:54:00 2026 daemon.notice wpa_supplicant[3301]: Set new config for phy phy1
Sat Feb 14 02:54:00 2026 daemon.notice netifd: Wireless device 'radio1' is now down
Sat Feb 14 02:54:00 2026 daemon.notice netifd: radio1 (15239): WARNING: Variable 'data' does not exist or is not an array/object
Sat Feb 14 02:54:00 2026 daemon.notice hostapd: Set new config for phy phy1:
Sat Feb 14 02:54:00 2026 daemon.notice wpa_supplicant[3301]: Set new config for phy phy1
Sat Feb 14 02:54:00 2026 daemon.notice wpa_supplicant[3301]: Set new config for phy phy1
Sat Feb 14 02:54:00 2026 daemon.notice hostapd: Set new config for phy phy1: /var/run/hostapd-phy1.conf
Sat Feb 14 02:54:00 2026 daemon.notice hostapd: Restart interface for phy phy1
Sat Feb 14 02:54:00 2026 daemon.notice hostapd: Configuration file: (phy phy1) --> new PHY
Sat Feb 14 02:54:00 2026 daemon.notice hostapd: Configuration file: Reading configuration file ''
Sat Feb 14 02:54:00 2026 kern.info kernel: [ 316.421099] br-lan: port 7(wlan1) entered blocking state
Sat Feb 14 02:54:00 2026 kern.info kernel: [ 316.426495] br-lan: port 7(wlan1) entered disabled state
Sat Feb 14 02:54:00 2026 kern.info kernel: [ 316.431884] mt798x-wmac 18000000.wifi wlan1: entered allmulticast mode
Sat Feb 14 02:54:00 2026 kern.info kernel: [ 316.438746] mt798x-wmac 18000000.wifi wlan1: entered promiscuous mode
Sat Feb 14 02:54:00 2026 kern.info kernel: [ 316.460013] br-lan: port 7(wlan1) entered blocking state
Sat Feb 14 02:54:00 2026 kern.info kernel: [ 316.465378] br-lan: port 7(wlan1) entered forwarding state
Sat Feb 14 02:54:00 2026 kern.info kernel: [ 316.472960] mt798x-wmac 18000000.wifi wlan1: left allmulticast mode
Sat Feb 14 02:54:00 2026 daemon.notice hostapd: wlan1: interface state UNINITIALIZED->COUNTRY_UPDATE
Sat Feb 14 02:54:00 2026 kern.info kernel: [ 316.479348] mt798x-wmac 18000000.wifi wlan1: left promiscuous mode
Sat Feb 14 02:54:00 2026 kern.info kernel: [ 316.485779] br-lan: port 7(wlan1) entered disabled state
Sat Feb 14 02:54:00 2026 daemon.notice hostapd: ACS: Automatic channel selection started, this may take a bit
Sat Feb 14 02:54:00 2026 daemon.notice hostapd: wlan1: interface state COUNTRY_UPDATE->ACS
Sat Feb 14 02:54:00 2026 daemon.notice hostapd: wlan1: ACS-STARTED
Sat Feb 14 02:54:00 2026 kern.info kernel: [ 316.538083] br-lan: port 7(wlan1) entered blocking state
Sat Feb 14 02:54:00 2026 kern.info kernel: [ 316.543457] br-lan: port 7(wlan1) entered disabled state
Sat Feb 14 02:54:00 2026 kern.info kernel: [ 316.548832] mt798x-wmac 18000000.wifi wlan1: entered allmulticast mode
Sat Feb 14 02:54:00 2026 kern.info kernel: [ 316.555836] mt798x-wmac 18000000.wifi wlan1: entered promiscuous mode
Sat Feb 14 02:54:00 2026 daemon.notice netifd: Wireless device 'radio1' is now up
Sat Feb 14 02:54:06 2026 daemon.notice hostapd: ACS: Survey for freq 5500 is missing noise floor
Sat Feb 14 02:54:06 2026 daemon.notice hostapd: ACS: Survey for freq 5520 is missing noise floor
Sat Feb 14 02:54:06 2026 daemon.notice hostapd: ACS: Survey for freq 5540 is missing noise floor
Sat Feb 14 02:54:06 2026 daemon.notice hostapd: ACS: Survey for freq 5560 is missing noise floor
Sat Feb 14 02:54:06 2026 daemon.notice hostapd: ACS: Survey for freq 5580 is missing noise floor
Sat Feb 14 02:54:06 2026 daemon.notice hostapd: ACS: Survey for freq 5600 is missing noise floor
Sat Feb 14 02:54:06 2026 daemon.notice hostapd: ACS: Survey for freq 5620 is missing noise floor
Sat Feb 14 02:54:06 2026 daemon.notice hostapd: ACS: Survey for freq 5640 is missing noise floor
Sat Feb 14 02:54:06 2026 daemon.notice hostapd: ACS: Survey for freq 5660 is missing noise floor
Sat Feb 14 02:54:06 2026 daemon.notice hostapd: ACS: Survey for freq 5680 is missing noise floor
Sat Feb 14 02:54:06 2026 daemon.notice hostapd: ACS: Survey for freq 5700 is missing noise floor
Sat Feb 14 02:54:06 2026 daemon.notice hostapd: ACS: Survey for freq 5720 is missing noise floor
Sat Feb 14 02:54:06 2026 daemon.notice hostapd: ACS: Survey for freq 5745 is missing noise floor
Sat Feb 14 02:54:06 2026 daemon.notice hostapd: ACS: Survey for freq 5765 is missing noise floor
Sat Feb 14 02:54:06 2026 daemon.notice hostapd: ACS: Survey for freq 5785 is missing noise floor
Sat Feb 14 02:54:06 2026 daemon.notice hostapd: ACS: Survey for freq 5805 is missing noise floor
Sat Feb 14 02:54:06 2026 daemon.notice hostapd: ACS: Survey for freq 5825 is missing noise floor
Sat Feb 14 02:54:06 2026 daemon.notice hostapd: ACS: Survey for freq 5845 is missing noise floor
Sat Feb 14 02:54:06 2026 daemon.notice hostapd: ACS: Survey for freq 5865 is missing noise floor
Sat Feb 14 02:54:06 2026 daemon.notice hostapd: wlan1: ACS-COMPLETED freq=5180 channel=36
Sat Feb 14 02:54:06 2026 daemon.notice hostapd: wlan1: interface state ACS->HT_SCAN
Sat Feb 14 02:54:07 2026 kern.info kernel: [ 322.641379] br-lan: port 7(wlan1) entered blocking state
Sat Feb 14 02:54:07 2026 kern.info kernel: [ 322.646698] br-lan: port 7(wlan1) entered forwarding state
Sat Feb 14 02:54:07 2026 daemon.notice netifd: Network device 'wlan1' link is up
Sat Feb 14 02:54:07 2026 daemon.notice hostapd: wlan1: interface state HT_SCAN->ENABLED
Change the setting to IN in both Wifi interfaces # disregard error
Reboot the router
Check your settings see if it worked
EDIT: You could SSH into the router and set it to the proper country
iw reg get
iw reg set US
uci set wireless.radio0.country=US
uci set wireless.radio1.country=US
uci commit wireless
1 Like
Yes I had rebooted after setting IN but 5ghz will fail to start if set to 160mhz.
Have set it back to US now.
After some research I’ve got to know that the fault lies in Indian implementation of DFS and this is not something that can be resolved now.
The best way forward would be to completely ignore DFS channels for now.