Hi,
I have a Router (WRT3200acm firmware 25.12.2) connected to the internet and configured with 4 VLANs with wifi networks.
This is the setup: No DHCP for VLANs on accesspoint - #8 by psherman
I had problems with the TP-Link wrt4300 because the device doesn't have enough memory and froze every 1 to 3 days.
I replaced it with a second wrt3200acm on which I rebuilt the entire config to make it a "dumb"accesspoint (firmware 25.12.3, DHCP disabled, no firewall config).
Everything is working fine except when I activate the wifi on both devices. They have the same SSID and passwords but operate on different channels. If both are active a wifi device cannot connect. Once one is switched off it works, no matter it is the router or the AP.
Whats going wrong?
This is the way it should be.
You may want to upgrade to 25.12.4, but that's a minor thing. The firewall should actually be configured because it is important for the management of the AP itself. But that is not why you're experiencing the issue.
Let's take a look at both configs, and please indicate which port is used on each device to connect them together.
Please connect to your OpenWrt device using ssh and copy the output of the following commands and post it here using the "Preformatted text </> " button (red circle; this works best in the 'Markdown' composer view in the blue oval):
Remember to redact passwords, VPN keys, MAC addresses and any public IP addresses you may have:
ubus call system board
cat /etc/config/network
cat /etc/config/wireless
cat /etc/config/dhcp
cat /etc/config/firewall
One small thing to check while gathering those configs: make sure the AP did not inherit any cloned MAC/BSSID settings from the old device. Same SSID/security on different channels is fine, but duplicate radio MACs (or a copied macaddr option) can make clients behave as if the two APs are the same broken radio. If you post the wireless config, redact the keys but leave the interface sections and channel/band bits visible.
Thanks for the heads up. I Configured everything from scratch on the AP in LuCi because things were different in the config files and a copy didn't work.
I updated my AP to 25.12.4 and it works fine. On the router it broke my internet connection. In the end I had to downgrade to 25.12.2 and put back my backup to get connection again.
Here the setup from the router:
Router:
root@LinksysOpenWrt:~# ubus call system board
{
"kernel": "6.12.74",
"hostname": "LinksysOpenWrt",
"system": "ARMv7 Processor rev 1 (v7l)",
"model": "Linksys WRT3200ACM",
"board_name": "linksys,wrt3200acm",
"rootfs_type": "squashfs",
"release": {
"distribution": "OpenWrt",
"version": "25.12.2",
"firmware_url": "https://downloads.openwrt.org/",
"revision": "r32802-f505120278",
"target": "mvebu/cortexa9",
"description": "OpenWrt 25.12.2 r32802-f505120278",
"builddate": "1774469393"
}
}
root@LinksysOpenWrt:~# 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 'fd5f:51*******::/48'
option packet_steering '1'
option dhcp_default_duid '0004b7e2938b6bc3491eb4c5c4788*******'
config device
option name 'br-lan'
option type 'bridge'
list ports 'lan1'
list ports 'lan2'
list ports 'lan3'
list ports 'lan4'
config interface 'lan'
option device 'br-lan.1'
option proto 'static'
option ipaddr '192.168.113.254'
option netmask '255.255.255.0'
option ip6assign '60'
config device
option name 'wan'
option macaddr '62:38:e0:be:30:90'
config interface 'wan'
option device 'wan'
option proto 'dhcp'
option type 'bridge'
config interface 'wan6'
option device 'wan'
option proto 'dhcpv6'
config bridge-vlan
option device 'br-lan'
option vlan '1'
list ports 'lan1:u*'
list ports 'lan2:u*'
list ports 'lan3:u*'
list ports 'lan4:u*'
config bridge-vlan
option device 'br-lan'
option vlan '30'
list ports 'lan2:t'
list ports 'lan4:t'
config bridge-vlan
option device 'br-lan'
option vlan '40'
list ports 'lan2:t'
list ports 'lan4:t'
config bridge-vlan
option device 'br-lan'
option vlan '50'
list ports 'lan2:t'
list ports 'lan4:t'
config interface 'IoT'
option proto 'static'
option device 'br-lan.30'
option ipaddr '192.168.130.1'
option netmask '255.255.255.0'
option multipath 'off'
config interface 'Guest'
option proto 'static'
option device 'br-lan.50'
option ipaddr '192.168.150.1'
option netmask '255.255.255.0'
config interface 'Home'
option proto 'static'
option device 'br-lan.40'
option ipaddr '192.168.140.1'
option netmask '255.255.255.0'
option multipath 'off'
root@LinksysOpenWrt:~# cat /etc/config/wireless
config wifi-device 'radio0'
option type 'mac80211'
option path 'soc/soc:pcie/pci0000:00/0000:00:01.0/0000:01:00.0'
option band '5g'
option channel '36'
option htmode 'VHT80'
option country 'NL'
option cell_density '0'
config wifi-device 'radio1'
option type 'mac80211'
option path 'soc/soc:pcie/pci0000:00/0000:00:02.0/0000:02:00.0'
option band '2g'
option channel '3'
option country 'NL'
option cell_density '0'
option htmode 'HT20'
config wifi-device 'radio2'
option type 'mac80211'
option path 'platform/soc/soc:internal-regs/f10d8000.sdhci/mmc_host/mmc0/mmc0:0001/mmc0:0001:1'
option band '5g'
option channel '34'
option htmode 'VHT80'
option cell_density '0'
option country 'NL'
config wifi-iface 'wifinet0'
option device 'radio0'
option mode 'ap'
option ssid 'Boulevard of broken streams'
option encryption 'psk2'
option key '*******'
option network 'Home'
option macaddr '60:38:e0:be:30:92'
config wifi-iface 'wifinet1'
option device 'radio1'
option mode 'ap'
option ssid 'Boulevard of broken streams'
option encryption 'psk2'
option key '*******'
option network 'Home'
option macaddr '60:38:e0:be:30:91'
config wifi-iface 'wifinet2'
option device 'radio0'
option mode 'ap'
option ssid 'Bruce Springstream (guest)'
option encryption 'psk2'
option key '*******'
option network 'Guest'
config wifi-iface 'wifinet3'
option device 'radio1'
option mode 'ap'
option ssid 'NMR56_24'
option encryption 'psk2'
option key '*******'
option network 'lan'
option disabled '1'
config wifi-iface 'wifinet4'
option device 'radio1'
option mode 'ap'
option ssid 'MGMToT'
option encryption 'psk2'
option network 'lan'
option key '2*******'
config wifi-iface 'wifinet5'
option device 'radio0'
option mode 'ap'
option ssid 'ThingiLAN24'
option encryption 'psk2'
option key '*******'
option network 'IoT'
option disabled '1'
config wifi-iface 'wifinet6'
option device 'radio1'
option mode 'ap'
option ssid 'ThingiLAN24'
option encryption 'psk2'
option key '*******'
option network 'IoT wan'
option disabled '1'
root@LinksysOpenWrt:~# 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 cachesize '1000'
option authoritative '1'
option readethers '1'
option leasefile '/tmp/dhcp.leases'
option resolvfile '/tmp/resolv.conf.d/resolv.conf.auto'
option localservice '1'
option ednspacket_max '1232'
option filter_aaaa '0'
option filter_a '0'
list interface 'Guest'
list interface 'Home'
list interface 'IoT'
list interface 'lan'
config dhcp 'lan'
option interface 'lan'
option start '10'
option limit '150'
option leasetime '12h'
option dhcpv4 'server'
option dhcpv6 'server'
option ra 'server'
list ra_flags 'managed-config'
list ra_flags 'other-config'
config dhcp 'wan'
option interface 'wan'
option ignore '1'
config odhcpd 'odhcpd'
option leasefile '/tmp/odhcpd.leases'
option leasetrigger '/usr/sbin/odhcpd-update'
option loglevel '4'
option piodir '/tmp/odhcpd-piodir'
option hostsdir '/tmp/hosts'
config dhcp 'Guest'
option interface 'Guest'
option start '100'
option limit '150'
option leasetime '12h'
config dhcp 'Home'
option interface 'Home'
option start '100'
option limit '150'
option leasetime '12h'
config dhcp 'IoT'
option interface 'IoT'
option start '10'
option limit '150'
option leasetime '12h'
config host
option name 'homeassistant.local'
list mac '00:23:24:95*******'
option ip '192.168.130.105'
option leasetime '12h'
config host
list mac '0C:97:5F:*******'
option ip '192.168.113.126'
option leasetime '7d'
option name 'Home'
root@LinksysOpenWrt:~# cat /etc/config/firewall
config defaults
option input 'REJECT'
option output 'ACCEPT'
option forward 'REJECT'
option synflood_protect '1'
config zone
option name 'lan'
option input 'ACCEPT'
option output 'ACCEPT'
option forward 'ACCEPT'
list network 'lan'
config zone
option name 'wan'
option input 'REJECT'
option output 'ACCEPT'
option forward 'REJECT'
option masq '1'
option mtu_fix '1'
list network 'wan'
list network 'wan6'
config forwarding
option src 'lan'
option dest 'wan'
config rule
option name 'Allow-DHCP-Renew'
option src 'wan'
option proto 'udp'
option dest_port '68'
option target 'ACCEPT'
option family 'ipv4'
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'
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'
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'
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'
config zone
option name 'IoT'
option input 'REJECT'
option output 'ACCEPT'
option forward 'ACCEPT'
list network 'IoT'
config zone
option name 'Guest'
option input 'REJECT'
option output 'ACCEPT'
option forward 'REJECT'
list network 'Guest'
config zone
option name 'Home'
option input 'ACCEPT'
option output 'ACCEPT'
option forward 'REJECT'
list network 'Home'
config forwarding
option src 'lan'
option dest 'IoT'
config forwarding
option src 'Guest'
option dest 'wan'
config rule
option src 'Guest'
option name 'Guest DHCP and DNS'
option dest_port '53 67 68'
option target 'ACCEPT'
config rule
option src 'IoT'
option name 'Guest DHCP and DNS'
option dest_port '53 67 68'
option target 'ACCEPT'
config forwarding
option src 'Home'
option dest 'IoT'
config forwarding
option src 'Home'
option dest 'wan'
config forwarding
option src 'IoT'
option dest 'wan'
AP setup:
Access Point
root@OpenWrt:~# ubus call system board
{
"kernel": "6.12.87",
"hostname": "OpenWrt",
"system": "ARMv7 Processor rev 1 (v7l)",
"model": "Linksys WRT3200ACM",
"board_name": "linksys,wrt3200acm",
"rootfs_type": "squashfs",
"release": {
"distribution": "OpenWrt",
"version": "25.12.4",
"firmware_url": "https://downloads.openwrt.org/",
"revision": "r32933-4ccb782af7",
"target": "mvebu/cortexa9",
"description": "OpenWrt 25.12.4 r32933-4ccb782af7",
"builddate": "1778712129"
}
}
root@OpenWrt:~# cat /etc/config/network
config interface 'loopback'
option device 'lo'
option proto 'static'
list ipaddr '127.0.0.1/8'
config globals 'globals'
option dhcp_default_duid '00042ab26f8a138a44889a27c0b2*****'
option ula_prefix 'fd91:609*****1::/48'
option packet_steering '1'
config device
option name 'br-lan'
option type 'bridge'
list ports 'lan1'
list ports 'lan2'
list ports 'lan3'
list ports 'lan4'
config interface 'lan'
option device 'br-lan.1'
option proto 'static'
option ip6assign '60'
option gateway '192.168.113.254'
option multipath 'off'
list ipaddr '192.168.113.127/24'
config device
option name 'wan'
option macaddr '62:38:e0:cf:*****'
config interface 'wan'
option device 'wan'
option proto 'dhcp'
config interface 'wan6'
option device 'wan'
option proto 'dhcpv6'
config bridge-vlan
option device 'br-lan'
option vlan '1'
list ports 'lan1'
config bridge-vlan
option device 'br-lan'
option vlan '30'
list ports 'lan1:t'
config bridge-vlan
option device 'br-lan'
option vlan '40'
list ports 'lan1:t'
config bridge-vlan
option device 'br-lan'
option vlan '50'
list ports 'lan1:t'
config interface 'Home'
option proto 'none'
option device 'br-lan.40'
option multipath 'off'
config interface 'IoT'
option proto 'none'
option device 'br-lan.30'
option multipath 'off'
config interface 'Guest'
option proto 'none'
option device 'br-lan.50'
option multipath 'off'
root@OpenWrt:~# cat /etc/config/wireless
config wifi-device 'radio0'
option type 'mac80211'
option path 'soc/soc:pcie/pci0000:00/0000:00:01.0/0000:01:00.0'
option band '5g'
option channel '48'
option htmode 'VHT80'
option country 'NL'
option cell_density '0'
config wifi-device 'radio1'
option type 'mac80211'
option path 'soc/soc:pcie/pci0000:00/0000:00:02.0/0000:02:00.0'
option band '2g'
option channel '7'
option htmode 'HT20'
option country 'NL'
option cell_density '0'
config wifi-device 'radio2'
option type 'mac80211'
option path 'platform/soc/soc:internal-regs/f10d8000.sdhci/mmc_host/mmc0/mmc0:0001/mmc0:0001:1'
option band '5g'
option channel '34'
option htmode 'VHT80'
config wifi-iface 'wifinet0'
option device 'radio1'
option mode 'ap'
option ssid 'ThingiLAN24'
option encryption 'psk2'
option key '*****'
option network 'IoT'
option macaddr '60:38:e0:c*****'
config wifi-iface 'wifinet1'
option device 'radio0'
option mode 'ap'
option ssid 'Bruce Springstream (guest)'
option encryption 'psk2'
option key *****'
option network 'Guest'
option macaddr '60:38:e0:c*****'
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 cachesize '1000'
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'
option filter_aaaa '0'
option filter_a '0'
config dhcp 'lan'
option interface 'lan'
option start '100'
option limit '150'
option leasetime '12h'
option dhcpv4 'server'
option dhcpv6 'server'
option ra 'server'
list ra_flags 'managed-config'
list ra_flags 'other-config'
option ra_preference 'medium'
option ignore '1'
config dhcp 'wan'
option interface 'wan'
option ignore '1'
config odhcpd 'odhcpd'
option maindhcp '0'
option leasefile '/tmp/odhcpd.leases'
option leasetrigger '/usr/sbin/odhcpd-update'
option loglevel '4'
option piodir '/tmp/odhcpd-piodir'
option hostsdir '/tmp/hosts'
root@OpenWrt:~# cat /etc/config/firewall
config defaults
option syn_flood 1
option input REJECT
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 DROP
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
### EXAMPLE CONFIG SECTIONS
# do not allow a specific ip to access wan
#config rule
# option src lan
# option src_ip 192.168.45.2
# option dest wan
# option proto tcp
# option target REJECT
# block a specific mac on wan
#config rule
# option dest wan
# option src_mac 00:11:22:33:44:66
# option target REJECT
# block incoming ICMP traffic on a zone
#config rule
# option src lan
# option proto ICMP
# option target DROP
# port redirect port coming in on wan to lan
#config redirect
# option src wan
# option src_dport 80
# option dest lan
# option dest_ip 192.168.16.235
# option dest_port 80
# option proto tcp
# port redirect of remapped ssh port (22001) on wan
#config redirect
# option src wan
# option src_dport 22001
# option dest lan
# option dest_port 22
# option proto tcp
### FULL CONFIG SECTIONS
#config rule
# option src lan
# option src_ip 192.168.45.2
# option src_mac 00:11:22:33:44:55
# option src_port 80
# option dest wan
# option dest_ip 194.25.2.129
# option dest_port 120
# option proto tcp
# option target REJECT
#config redirect
# option src lan
# option src_ip 192.168.45.2
# option src_mac 00:11:22:33*****
# option src_port 1024
# option src_dport 80
# option dest_ip 194.25.2.129
# option dest_port 120
# option proto tcp
Thanks for helping out!
-NM
You have partially redacted the MAC addresses for the AP, but it is absolutely critical that the two devices have unique MAC addresses for every interface.
Please check them to make sure the MACs are not the same. Also, did you edit/override them (in particular, on the wifi interfaces) or otherwise "clone" the devices?
The first 6 characters on the router and the AP are aqual (60:38:E0 Belkin)
The last 6 characters are different. The MAC adresses of all Interfaces (Gueast, Home, IoT and lan) are equal (not unique), So are the interfaces on the router.
The wireless Mac addresses are unique. The last character is different. So basically all mac addresses on wireless are unique.
All Mac addresses were assigned by Luci and not edited by me.