Hello, I'm having trouble configuring my AC88U. It's not clear to me what 5 GHz channels and channel widths are available, since using combinations that would normally work with the retail firmware makes wireless in the 5 GHz band unavailable, usually until I restart the router.
For example I just changed to channel 52 with a width of 80 MHz and the log says senseless stuff like:
Thu Apr 6 11:56:18 2023 kern.err kernel: [ 71.951517] ieee80211 phy1: brcmf_cfg80211_start_ap: Set Channel failed: chspec=57466, -52
Thu Apr 6 11:56:24 2023 kern.err kernel: [ 77.963256] ieee80211 phy1: brcmf_cfg80211_start_ap: Set Channel failed: chspec=57466, -52
Thu Apr 6 11:56:30 2023 kern.err kernel: [ 83.975080] ieee80211 phy1: brcmf_cfg80211_start_ap: Set Channel failed: chspec=57466, -52
Thu Apr 6 11:56:36 2023 kern.err kernel: [ 89.989280] ieee80211 phy1: brcmf_cfg80211_start_ap: Set Channel failed: chspec=57466, -52
Thu Apr 6 11:56:42 2023 kern.err kernel: [ 96.002543] ieee80211 phy1: brcmf_cfg80211_start_ap: Set Channel failed: chspec=57466, -52
Thu Apr 6 11:56:45 2023 daemon.notice hostapd: Remove interface 'wlan1'
Thu Apr 6 11:56:45 2023 daemon.notice hostapd: wlan1: interface state HT_SCAN->DISABLED
Thu Apr 6 11:56:45 2023 daemon.notice hostapd: wlan1-1: AP-DISABLED
Thu Apr 6 11:56:45 2023 daemon.notice hostapd: wlan1-1: CTRL-EVENT-TERMINATING
Thu Apr 6 11:56:45 2023 daemon.err hostapd: rmdir[ctrl_interface=/var/run/hostapd]: Permission denied
Thu Apr 6 11:56:46 2023 daemon.notice netifd: Network device 'wlan1-1' link is down
Thu Apr 6 11:56:46 2023 kern.info kernel: [ 100.186467] br-lan: port 9(wlan1-1) entered disabled state
Thu Apr 6 11:56:46 2023 kern.err kernel: [ 100.195814] ieee80211 phy1: brcmf_cfg80211_get_channel: chanspec failed (-52)
Thu Apr 6 11:56:46 2023 kern.info kernel: [ 100.204012] device wlan1-1 left promiscuous mode
Thu Apr 6 11:56:46 2023 kern.info kernel: [ 100.208855] br-lan: port 9(wlan1-1) entered disabled state
Thu Apr 6 11:56:46 2023 daemon.notice hostapd: nl80211: Failed to remove interface wlan1-1 from bridge br-lan: No such device
Thu Apr 6 11:56:46 2023 daemon.notice hostapd: wlan1: AP-DISABLED
Thu Apr 6 11:56:46 2023 daemon.notice hostapd: wlan1: CTRL-EVENT-TERMINATING
Thu Apr 6 11:56:46 2023 daemon.err hostapd: rmdir[ctrl_interface=/var/run/hostapd]: Permission denied
Thu Apr 6 11:56:46 2023 daemon.notice hostapd: nl80211: deinit ifname=wlan1 disabled_11b_rates=0
Thu Apr 6 11:56:46 2023 kern.info kernel: [ 100.326435] device wlan1 left promiscuous mode
Thu Apr 6 11:56:46 2023 kern.info kernel: [ 100.330974] br-lan: port 7(wlan1) entered disabled state
Thu Apr 6 11:56:47 2023 daemon.notice netifd: radio1 (3372): command failed: No error information (-524)
Thu Apr 6 11:56:47 2023 daemon.notice netifd: Wireless device 'radio1' is now down
Thu Apr 6 11:56:47 2023 daemon.notice netifd: radio1 (3398): command failed: No error information (-524)
Thu Apr 6 11:56:47 2023 daemon.notice netifd: radio1 (3398): command failed: I/O error (-5)
Thu Apr 6 11:56:49 2023 daemon.notice hostapd: Configuration file: /var/run/hostapd-phy1.conf (phy wlan1) --> new PHY
Thu Apr 6 11:56:49 2023 kern.info kernel: [ 102.474785] br-lan: port 7(wlan1) entered blocking state
Thu Apr 6 11:56:49 2023 kern.info kernel: [ 102.480315] br-lan: port 7(wlan1) entered disabled state
Thu Apr 6 11:56:49 2023 kern.info kernel: [ 102.485841] device wlan1 entered promiscuous mode
Thu Apr 6 11:56:49 2023 daemon.notice hostapd: wlan1: interface state UNINITIALIZED->COUNTRY_UPDATE
Thu Apr 6 11:56:49 2023 daemon.notice hostapd: wlan1: interface state COUNTRY_UPDATE->HT_SCAN
Thu Apr 6 11:56:49 2023 kern.err kernel: [ 102.493707] ieee80211 phy1: brcmf_run_escan: error (-52)
Thu Apr 6 11:56:49 2023 kern.err kernel: [ 102.499098] ieee80211 phy1: brcmf_cfg80211_scan: scan error (-52)
Thu Apr 6 11:56:49 2023 kern.info kernel: [ 103.026355] br-lan: port 7(wlan1) entered disabled state
Thu Apr 6 11:56:49 2023 kern.info kernel: [ 103.033513] device wlan1 left promiscuous mode
Thu Apr 6 11:56:49 2023 kern.info kernel: [ 103.038230] br-lan: port 7(wlan1) entered disabled state
Thu Apr 6 11:56:49 2023 kern.err kernel: [ 103.088825] ieee80211 phy1: brcmf_run_escan: error (-52)
Thu Apr 6 11:56:49 2023 kern.err kernel: [ 103.094210] ieee80211 phy1: brcmf_cfg80211_scan: scan error (-52)
Thu Apr 6 11:56:49 2023 daemon.err hostapd: Failed to request a scan of neighboring BSSes ret=-52 (No error information)
Thu Apr 6 11:56:49 2023 daemon.notice hostapd: wlan1: interface state HT_SCAN->DISABLED
Thu Apr 6 11:56:49 2023 daemon.notice hostapd: wlan1: AP-DISABLED
Thu Apr 6 11:56:49 2023 daemon.err hostapd: wlan1: Unable to setup interface.
Thu Apr 6 11:56:49 2023 daemon.notice hostapd: nl80211: deinit ifname=wlan1 disabled_11b_rates=0
Thu Apr 6 11:56:49 2023 daemon.notice hostapd: nl80211: Failed to remove interface wlan1 from bridge br-lan: Invalid argument
Thu Apr 6 11:56:50 2023 daemon.err hostapd: rmdir[ctrl_interface=/var/run/hostapd]: Permission denied
Thu Apr 6 11:56:50 2023 daemon.notice hostapd: wlan1: CTRL-EVENT-TERMINATING
Thu Apr 6 11:56:50 2023 daemon.err hostapd: hostapd_free_hapd_data: Interface wlan1 wasn't started
Thu Apr 6 11:56:50 2023 daemon.err hostapd: rmdir[ctrl_interface=/var/run/hostapd]: Permission denied
Thu Apr 6 11:56:50 2023 daemon.notice hostapd: wlan1-1: CTRL-EVENT-TERMINATING
Thu Apr 6 11:56:50 2023 daemon.err hostapd: hostapd_free_hapd_data: Interface wlan1-1 wasn't started
Thu Apr 6 11:56:50 2023 daemon.notice netifd: radio1 (3398): Command failed: ubus call hostapd config_add {"iface":"wlan1", "config":"/var/run/hostapd-phy1.conf"} (Invalid argument)
Thu Apr 6 11:56:50 2023 daemon.notice netifd: radio1 (3398): Usage: ubus [<options>] <command> [arguments...]
Thu Apr 6 11:56:50 2023 daemon.notice netifd: radio1 (3398): Options:
Thu Apr 6 11:56:50 2023 daemon.notice netifd: radio1 (3398): -s <socket>: Set the unix domain socket to connect to
Thu Apr 6 11:56:50 2023 daemon.notice netifd: radio1 (3398): -t <timeout>: Set the timeout (in seconds) for a command to complete
Thu Apr 6 11:56:50 2023 daemon.notice netifd: radio1 (3398): -S: Use simplified output (for scripts)
Thu Apr 6 11:56:50 2023 daemon.notice netifd: radio1 (3398): -v: More verbose output
Thu Apr 6 11:56:50 2023 daemon.notice netifd: radio1 (3398): -m <type>: (for monitor): include a specific message type
Thu Apr 6 11:56:50 2023 daemon.notice netifd: radio1 (3398): (can be used more than once)
Thu Apr 6 11:56:50 2023 daemon.notice netifd: radio1 (3398): -M <r|t> (for monitor): only capture received or transmitted traffic
Thu Apr 6 11:56:50 2023 daemon.notice netifd: radio1 (3398):
Thu Apr 6 11:56:50 2023 daemon.notice netifd: radio1 (3398): Commands:
Thu Apr 6 11:56:50 2023 daemon.notice netifd: radio1 (3398): - list [<path>] List objects
Thu Apr 6 11:56:50 2023 daemon.notice netifd: radio1 (3398): - call <path> <method> [<message>] Call an object method
Thu Apr 6 11:56:50 2023 daemon.notice netifd: radio1 (3398): - subscribe <path> [<path>...] Subscribe to object(s) notifications
Thu Apr 6 11:56:50 2023 daemon.notice netifd: radio1 (3398): - listen [<path>...] Listen for events
Thu Apr 6 11:56:50 2023 daemon.notice netifd: radio1 (3398): - send <type> [<message>] Send an event
Thu Apr 6 11:56:50 2023 daemon.notice netifd: radio1 (3398): - wait_for <object> [<object>...] Wait for multiple objects to appear on ubus
Thu Apr 6 11:56:50 2023 daemon.notice netifd: radio1 (3398): - monitor Monitor ubus traffic
Thu Apr 6 11:56:50 2023 daemon.notice netifd: radio1 (3398):
Thu Apr 6 11:56:50 2023 daemon.notice netifd: radio1 (3398): Device setup failed: HOSTAPD_START_FAILED
Thu Apr 6 11:56:50 2023 daemon.notice netifd: Wireless device 'radio1' set retry=0
Thu Apr 6 11:56:50 2023 daemon.crit netifd: Wireless device 'radio1' setup failed, retry=0
Thu Apr 6 11:56:50 2023 daemon.notice netifd: Wireless device 'radio1' is now down
I am trying to change the channel because I have weird problems with jitter that do not occur with the retail firmware.
I have the suspicion that the wireless firmware is simply buggy in this regard but I'm not sure if I'm doing something wrong.