R5C安装mtk7922无线网卡，只要修改任意选项，wifi可以扫描但AP不起作用

[robinquca]

R5C使用6月最新的固件，无线网卡mtk7922，其他都没有问题，无线选项所有默认值可以使用，但修改任意一个参数，保存后，AP功能不能起作用，请大佬查下问题，谢谢

默认参数，AP成功启动，系统日志：
Fri Aug 23 12:02:12 2024 daemon.notice hostapd: Configuration file: /var/run/hostapd-phy0.conf (phy phy0-ap0) --> new PHY
Fri Aug 23 12:02:12 2024 daemon.info ModemManager[25294]: hotplug: add network interface phy0-ap0: event processed
Fri Aug 23 12:02:13 2024 daemon.notice hostapd: phy0-ap0: interface state UNINITIALIZED->COUNTRY_UPDATE
Fri Aug 23 12:02:13 2024 kern.info kernel: [ 220.180937] br-lan: port 2(phy0-ap0) entered blocking state
Fri Aug 23 12:02:13 2024 kern.info kernel: [ 220.181448] br-lan: port 2(phy0-ap0) entered disabled state
Fri Aug 23 12:02:13 2024 kern.info kernel: [ 220.182270] device phy0-ap0 entered promiscuous mode
Fri Aug 23 12:02:13 2024 kern.info kernel: [ 220.182847] br-lan: port 2(phy0-ap0) entered blocking state
Fri Aug 23 12:02:13 2024 kern.info kernel: [ 220.183353] br-lan: port 2(phy0-ap0) entered forwarding state
Fri Aug 23 12:02:13 2024 daemon.notice hostapd: phy0-ap0: interface state COUNTRY_UPDATE->HT_SCAN
Fri Aug 23 12:02:13 2024 kern.info kernel: [ 220.185299] br-lan: port 2(phy0-ap0) entered disabled state
Fri Aug 23 12:02:13 2024 kern.info kernel: [ 221.070750] IPv6: ADDRCONF(NETDEV_CHANGE): phy0-ap0: link becomes ready
Fri Aug 23 12:02:13 2024 kern.info kernel: [ 221.071713] br-lan: port 2(phy0-ap0) entered blocking state
Fri Aug 23 12:02:13 2024 kern.info kernel: [ 221.072264] br-lan: port 2(phy0-ap0) entered forwarding state
Fri Aug 23 12:02:13 2024 daemon.notice hostapd: phy0-ap0: interface state HT_SCAN->ENABLED
Fri Aug 23 12:02:13 2024 daemon.notice hostapd: phy0-ap0: AP-ENABLED
Fri Aug 23 12:02:14 2024 daemon.notice netifd: Network device 'phy0-ap0' link is up
Fri Aug 23 12:02:15 2024 daemon.info avahi-daemon[8412]: Joining mDNS multicast group on interface phy0-ap0.IPv6 with address fe80::3203:c8ff:fe37:a53b.
Fri Aug 23 12:02:15 2024 daemon.info avahi-daemon[8412]: New relevant interface phy0-ap0.IPv6 for mDNS.
Fri Aug 23 12:02:15 2024 daemon.info avahi-daemon[8412]: Registering new address record for fe80::3203:c8ff:fe37:a53b on phy0-ap0.*.

任意修改参数后，AP不会再启动，扫描可以，系统日志：
Fri Aug 23 12:17:35 2024 daemon.notice hostapd: Configuration file: /var/run/hostapd-phy0.conf (phy phy0-ap0) --> new PHY
Fri Aug 23 12:17:35 2024 kern.info kernel: [ 28.184718] br-lan: port 2(phy0-ap0) entered blocking state
Fri Aug 23 12:17:35 2024 kern.info kernel: [ 28.185295] br-lan: port 2(phy0-ap0) entered disabled state
Fri Aug 23 12:17:36 2024 kern.info kernel: [ 28.186508] device phy0-ap0 entered promiscuous mode
Fri Aug 23 12:17:36 2024 kern.info kernel: [ 28.187311] br-lan: port 2(phy0-ap0) entered blocking state
Fri Aug 23 12:17:36 2024 kern.info kernel: [ 28.187859] br-lan: port 2(phy0-ap0) entered forwarding state
Fri Aug 23 12:17:36 2024 daemon.notice hostapd: phy0-ap0: interface state UNINITIALIZED->COUNTRY_UPDATE
Fri Aug 23 12:17:36 2024 kern.info kernel: [ 28.189038] br-lan: port 2(phy0-ap0) entered disabled state
Fri Aug 23 12:17:36 2024 daemon.notice hostapd: phy0-ap0: interface state COUNTRY_UPDATE->HT_SCAN
Fri Aug 23 12:17:37 2024 daemon.err hostapd: Interface initialization failed
Fri Aug 23 12:17:37 2024 daemon.notice hostapd: phy0-ap0: interface state HT_SCAN->DISABLED
Fri Aug 23 12:17:37 2024 daemon.notice hostapd: phy0-ap0: AP-DISABLED

[DHDAXCW]

截图看看配置啥样的

[robinquca]

自己摸索了下，一定要在AP有客户端连接时修改工作频率、名称或密码等，那AP可以启动，能正常工作。一旦没有客户端连接AP，空载的AP修改参数后保存，AP就会不再启动，如日志显示那样启动失败。另外密码修改时，如加密用“WPA-PSK”，修改后AP能启动，加密用“WPA2-PSK"或”WPA-PSK/WPA2-PSK Mixed Mode“无论有没有客户端连接AP，都不能启动AP，暂时没有试其他加密方式，目前我是用此方法解决修改AP参数的。