rj0se
January 30, 2025, 5:19pm
1
Fresh install > Factory reset
Any inputs / guidance towards issue resolution would be appreciated.
System details:
Hostname
OpenWrt
Model
Asus RT-N12+
Architecture
MediaTek MT7620N ver:2 eco:6
Target Platform
ramips/mt7620
Firmware Version
OpenWrt 22.03.7 r20341-591b7e93d3 / LuCI openwrt-22.03 branch git-24.067.02332-4c1ddfb
Kernel Version
5.10.221
Command outputs :
System log
Kernel log
Found this issue on GitHub.
egc
January 30, 2025, 5:27pm
2
for encryption try this:
option encryption 'psk2+ccmp'
Will probably not be the root cause but worth a try
rj0se
January 30, 2025, 5:56pm
3
Thank you for the inputs. Already used this option. Similar behavior...
brada4
January 30, 2025, 6:36pm
4
Check dd-wrt, thry still make squeezed fw for small old devices like yours.
For kernel logs- keep logread -f running and enable AP while it is running, then try to connect and see it fail. Kernel log is subset of system log, no point posting both.
rj0se
March 3, 2025, 7:22am
5
Wireless
radio0
Type: MediaTek MT7620 802.11bgn
Channel: 1 (2.412 GHz)
Bitrate: -
Signal: 0 dBm / Quality: 0%
SSID: OpenWrt
Mode: Master
BSSID: xx:xx:xx:xx:xx:xx
Encryption: mixed WPA/WPA2 PSK (CCMP)
Associations: -
iwinfo
wlan0 ESSID: "OpenWrt"
Access Point: xx:xx:xx:xx:xx:xx
Mode: Master Channel: 1 (2.412 GHz) HT Mode: HT20
Center Channel 1: 1 2: unknown
Tx-Power: 20 dBm Link Quality: unknown/70
Signal: unknown Noise: unknown
Bit Rate: unknown
Encryption: mixed WPA/WPA2 PSK (CCMP)
Type: nl80211 HW Mode(s): 802.11b/g/n
Hardware: 14C3:7620 14C3:000C [MediaTek MT7620]
TX power offset: none
Frequency offset: none
Supports VAPs: yes PHY name: phy0
dmesg | grep wlan0
[ 579.234105] br-lan: port 2(wlan0) entered blocking state
[ 579.239737] br-lan: port 2(wlan0) entered disabled state
[ 579.245804] device wlan0 entered promiscuous mode
[ 581.681205] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
[ 581.688214] br-lan: port 2(wlan0) entered blocking state
[ 581.693646] br-lan: port 2(wlan0) entered forwarding state
root@OpenWrt:~# cat /etc/config/network
config interface 'loopback'
option device 'lo'
option proto 'static'
option ipaddr '127.0.0.1'
option netmask '255.0.0.0'
config globals 'globals'
option ula_prefix 'fd99:688f:61c2::/48'
config device
option name 'br-lan'
option type 'bridge'
list ports 'eth0.1'
config interface 'lan'
option device 'br-lan'
option proto 'static'
option ipaddr '192.168.1.1'
option netmask '255.255.255.0'
option ip6assign '60'
config device
option name 'eth0.2'
option macaddr 'xx:xx:xx:xx:xx:xx'
config interface 'wan'
option device 'eth0.2'
option proto 'dhcp'
config interface 'wan6'
option device 'eth0.2'
option proto 'dhcpv6'
config switch
option name 'switch0'
option reset '1'
option enable_vlan '1'
config switch_vlan
option device 'switch0'
option vlan '1'
option ports '0 1 2 3 6t'
config switch_vlan
option device 'switch0'
option vlan '2'
option ports '4 6t'
root@OpenWrt:~# cat /etc/config/wireless
config wifi-device 'radio0'
option type 'mac80211'
option path 'platform/10180000.wmac'
option channel '1'
option band '2g'
option htmode 'HT20'
option cell_density '0'
config wifi-iface 'default_radio0'
option device 'radio0'
option network 'lan'
option mode 'ap'
option ssid 'OpenWrt'
option encryption 'psk-mixed+ccmp'
option key '1q2w3e4r'
root@OpenWrt:~# cat /etc/config/dhcp
config dnsmasq
option domainneeded '1'
option boguspriv '1'
option filterwin2k '0'
option localise_queries '1'
option rebind_protection '1'
option rebind_localhost '1'
option local '/lan/'
option domain 'lan'
option expandhosts '1'
option nonegcache '0'
option authoritative '1'
option readethers '1'
option leasefile '/tmp/dhcp.leases'
option resolvfile '/tmp/resolv.conf.d/resolv.conf.auto'
option nonwildcard '1'
option localservice '1'
option ednspacket_max '1232'
config dhcp 'lan'
option interface 'lan'
option start '100'
option limit '150'
option leasetime '12h'
option dhcpv4 'server'
option dhcpv6 'server'
option ra 'server'
option ra_slaac '1'
list ra_flags 'managed-config'
list ra_flags 'other-config'
config dhcp 'wan'
option interface 'wan'
option ignore '1'
config odhcpd 'odhcpd'
option maindhcp '0'
option leasefile '/tmp/hosts/odhcpd'
option leasetrigger '/usr/sbin/odhcpd-update'
option loglevel '4'
root@OpenWrt:~# cat /etc/config/firewall
config defaults
option syn_flood 1
option input ACCEPT
option output ACCEPT
option forward REJECT
# Uncomment this line to disable ipv6 rules
# option disable_ipv6 1
config zone
option name lan
list network 'lan'
option input ACCEPT
option output ACCEPT
option forward ACCEPT
config zone
option name wan
list network 'wan'
list network 'wan6'
option input REJECT
option output ACCEPT
option forward REJECT
option masq 1
option mtu_fix 1
config forwarding
option src lan
option dest wan
# We need to accept udp packets on port 68,
# see https://dev.openwrt.org/ticket/4108
config rule
option name Allow-DHCP-Renew
option src wan
option proto udp
option dest_port 68
option target ACCEPT
option family ipv4
# Allow IPv4 ping
config rule
option name Allow-Ping
option src wan
option proto icmp
option icmp_type echo-request
option family ipv4
option target ACCEPT
config rule
option name Allow-IGMP
option src wan
option proto igmp
option family ipv4
option target ACCEPT
# Allow DHCPv6 replies
# see https://github.com/openwrt/openwrt/issues/5066
config rule
option name Allow-DHCPv6
option src wan
option proto udp
option dest_port 546
option family ipv6
option target ACCEPT
config rule
option name Allow-MLD
option src wan
option proto icmp
option src_ip fe80::/10
list icmp_type '130/0'
list icmp_type '131/0'
list icmp_type '132/0'
list icmp_type '143/0'
option family ipv6
option target ACCEPT
# Allow essential incoming IPv6 ICMP traffic
config rule
option name Allow-ICMPv6-Input
option src wan
option proto icmp
list icmp_type echo-request
list icmp_type echo-reply
list icmp_type destination-unreachable
list icmp_type packet-too-big
list icmp_type time-exceeded
list icmp_type bad-header
list icmp_type unknown-header-type
list icmp_type router-solicitation
list icmp_type neighbour-solicitation
list icmp_type router-advertisement
list icmp_type neighbour-advertisement
option limit 1000/sec
option family ipv6
option target ACCEPT
# Allow essential forwarded IPv6 ICMP traffic
config rule
option name Allow-ICMPv6-Forward
option src wan
option dest *
option proto icmp
list icmp_type echo-request
list icmp_type echo-reply
list icmp_type destination-unreachable
list icmp_type packet-too-big
list icmp_type time-exceeded
list icmp_type bad-header
list icmp_type unknown-header-type
option limit 1000/sec
option family ipv6
option target ACCEPT
config rule
option name Allow-IPSec-ESP
option src wan
option dest lan
option proto esp
option target ACCEPT
config rule
option name Allow-ISAKMP
option src wan
option dest lan
option dest_port 500
option proto udp
option target ACCEPT
Don’t use psk mixed.
Try wpa2 (psk2).
Also, you’re using an old, eol, and unsupported version of OpenWrt. Since your hardware doesn’t seem to be supported anymore, you should seriously consider a newer device.
rj0se
March 3, 2025, 3:42pm
8
@psherman Thank you for the prompt response. I had already tried multiple combinations including the one you suggested. Also, tried with "WMM mode" set to "OFF". Still facing the same issue.
Also, I have seen a related issue on OpenWrt@GitHub . Was this issue resolved? Which release?
Am just trying to revive an old router and prevent e-waste, by using it with OpenWrt. The Asus firmware has known issues and vulnerabilities. Seeing that LAN seems to be working just fine in OpenWRT; wish that the wireless would work too.
I totally appreciate that and applaud the effort.
Without a doubt. But, so does OpenWrt 22.03 as it is EOL. The last release was in July 2024 , and it will not be updated to patch any of the vulnerabilities that have been discovered since its release.
rj0se
March 4, 2025, 5:13pm
10
Yes, point taken. However, even OpenWRT 22.03 would be FAR better than the native Asus firmware by MILES, and most likely have lesser CVEs/issues. Commendable work; keep it up!