No internet through router, yes intranet, network unreachable, linksys e8450

ozzloy · March 14, 2023, 7:24am

not sure what info is relevant.

i'm currently unable to reach the internet through the router
yes, i turned it off and back on again. i rebooted both the router and the modem. several times
lan IPv4: 10.0.1.1/24, IPv6: fd06:4aab:e32b::1/60.
wan has no ip
earlier today my ISP was down, but it is back up now
i can get internet by connecting directly to modem, bypassing router
in the last week, i installed a bunch of tasmota dimmers, idk if that's relevant. they were up and working for at least a few days now
i tried setting option igmp_snooping '1' in the file /etc/config/network as suggested by another thread (can't find that thread now), to no avail. not sure what this option does, so i turned it back off now.
i'm able to access the dimmers through, for example, http://front-door-dimmer.lan/ so router intranet works
ping does not work

# ping 8.8.8.8
PING 8.8.8.8 (8.8.8.8): 56 data bytes
ping: sendto: Network unreachable

i haven't done any configuring of dns

# cat /etc/resolv.conf 
search lan
nameserver 127.0.0.1
nameserver ::1

and

root@router:/etc# cat /tmp/resolv.conf.d/resolv.conf.auto 
root@router:/etc#

i don't know what else might be helpful to troubleshoot. here's the tail of logread

# logread | tail
Tue Jan 10 10:51:31 2023 kern.info kernel: [10456.160628] mtk_soc_eth 1b100000.ethernet eth0: configuring for fixed/2500base-x link mode
Tue Jan 10 10:51:31 2023 kern.info kernel: [10456.168972] mtk_soc_eth 1b100000.ethernet eth0: Link is Up - 2.5Gbps/Full - flow control rx/tx
Tue Jan 10 10:52:56 2023 kern.err kernel: [10541.084726] mtk_soc_eth 1b100000.ethernet eth0: transmit timed out
Tue Jan 10 10:52:56 2023 kern.info kernel: [10541.091242] mtk_soc_eth 1b100000.ethernet eth0: Link is Down
Tue Jan 10 10:52:56 2023 kern.info kernel: [10541.120851] mtk_soc_eth 1b100000.ethernet eth0: configuring for fixed/2500base-x link mode
Tue Jan 10 10:52:56 2023 kern.info kernel: [10541.129206] mtk_soc_eth 1b100000.ethernet eth0: Link is Up - 2.5Gbps/Full - flow control rx/tx
Tue Jan 10 10:54:11 2023 kern.err kernel: [10616.124727] mtk_soc_eth 1b100000.ethernet eth0: transmit timed out
Tue Jan 10 10:54:11 2023 kern.info kernel: [10616.131067] mtk_soc_eth 1b100000.ethernet eth0: Link is Down
Tue Jan 10 10:54:11 2023 kern.info kernel: [10616.160578] mtk_soc_eth 1b100000.ethernet eth0: configuring for fixed/2500base-x link mode
Tue Jan 10 10:54:11 2023 kern.info kernel: [10616.168905] mtk_soc_eth 1b100000.ethernet eth0: Link is Up - 2.5Gbps/Full - flow control rx/tx

i tried some stuff in other threads, but so far i'm still in the same situation.

any help is much appreciated. if there's some other logs that would be helpful, i'll post those too. about to go afk for 12 hours.

ozzloy · March 14, 2023, 5:51pm

it seems like maybe all of the router's ethernet ports are broken.

2 laptops are unable to connect to the router over ethernet.
i've used the same ethernet cable to connect my laptop directly to the modem, and that works just fine.
the laptops can both connect to the router's wifi.
the router can't connect to the modem, and that's also over ethernet.

mk24 · March 14, 2023, 6:30pm

The eth0 which keeps going up and down in the log is the internal link from the CPU chip to the switch chip, and it is not supposed to do that. It should start up once and stay up.

Which version are you running? 22.03.3 should work.

ozzloy · March 14, 2023, 10:43pm

looks like i'm running 22.03.1. this is at the bottom of luci
Powered by LuCI openwrt-22.03 branch (git-22.245.77528-487e58a) / OpenWrt 22.03.1 r19777-2853b6d652

i'm upgrading to this e8450 linksys ubi sysupgrade
wish me luck!

ozzloy · March 14, 2023, 11:10pm

now i get an ip from router on my laptop through ethernet and wifi but i can't connect to luci, or ssh to 10.0.1.1.

no internet.

unable to connect to other devices, like http://front-door-dimmer.lan/

haven't power cycled the router since hitting upgrade. i'll be afk for at least an hour running errands, hoping it just needs more time and everything will work perfectly when i return.

thanks @mk24 for notifying me of the new version. unfortunately, it currently does not look promising.

psherman · March 14, 2023, 11:12pm

What IP do you get on your laptop? If it is, for example, somethign in the 192.168.1.0/24 range, it would be expected that the router would also be in that range (default for OpenWrt is 192.168.1.1). Therefore, the router wouldn't be reachable at 10.0.1.1 (unless you set it as such after installing openwrt).

ozzloy · March 14, 2023, 11:20pm

wifi 10.0.1.163
eth 10.0.1.220

psherman · March 14, 2023, 11:22pm

Did you just install/upgrade openwrt such that it would have default settings?

If so...

this would not be possible because wifi is disabled by default. It would suggest you are connected to another device entirely.

ozzloy · March 14, 2023, 11:26pm

ah, i figured it kept the settings from before the upgrade.

there's no other device i could be connected to. the ethernet cable goes from my laptop to the router. there's no other router with the essid my wifi is connected to. i disconnected and reconnected the wifi after the upgrade process finished.

so ... it's still running something. maybe because i haven't power cycled, it's still running the old image from ... ram?

psherman · March 14, 2023, 11:28pm

So you kept the old settings? was 10.0.1.1 your router IP previously?

ozzloy · March 14, 2023, 11:30pm

yes. i also made a backup of everything that could be backed up on the firmware upgrade page.

yes

psherman · March 14, 2023, 11:33pm

can you ping 10.0.1.1?

ozzloy · March 14, 2023, 11:46pm

i tried again just now,

$ ping 10.0.1.1
PING 10.0.1.1 (10.0.1.1) 56(84) bytes of data.
From 10.0.1.220 icmp_seq=1 Destination Host Unreachable
From 10.0.1.220 icmp_seq=2 Destination Host Unreachable
From 10.0.1.220 icmp_seq=3 Destination Host Unreachable
From 10.0.1.220 icmp_seq=4 Destination Host Unreachable
^C
--- 10.0.1.1 ping statistics ---
6 packets transmitted, 0 received, +4 errors, 100% packet loss, time 5122ms
pipe 4

i turned off my ethernet connection so ping would go through wifi and HEY, ping works, and now i can get into the router!

router's now running 22.03.3.

ethernet still doesn't work. i can access other internal things again, mdns works, so i can do http://front-door-dimmer.lan/ again.

ozzloy · March 14, 2023, 11:50pm

ok, weird.
now the router has the following lan IPv4: 10.0.1.1/24, wan IPv4: 24.6.31.217/21
but my laptop is unable to get to the internet through wifi, but it does get an ip at least.
laptop doesn't get an ip on ethernet from the router.

ozzloy · March 14, 2023, 11:57pm

lol, wan disappeared.
here's another tail of logread

# logread | tail
Tue Jan 10 12:33:03 2023 kern.err kernel: [ 4157.174865] mtk_soc_eth 1b100000.ethernet eth0: transmit timed out
Tue Jan 10 12:33:03 2023 kern.info kernel: [ 4157.181178] mtk_soc_eth 1b100000.ethernet eth0: Link is Down
Tue Jan 10 12:33:03 2023 kern.info kernel: [ 4157.210709] mtk_soc_eth 1b100000.ethernet eth0: configuring for fixed/2500base-x link mode
Tue Jan 10 12:33:03 2023 kern.info kernel: [ 4157.219042] mtk_soc_eth 1b100000.ethernet eth0: Link is Up - 2.5Gbps/Full - flow control rx/tx
Tue Jan 10 12:34:33 2023 kern.err kernel: [ 4247.174865] mtk_soc_eth 1b100000.ethernet eth0: transmit timed out
Tue Jan 10 12:34:33 2023 kern.info kernel: [ 4247.181184] mtk_soc_eth 1b100000.ethernet eth0: Link is Down
Tue Jan 10 12:34:33 2023 kern.info kernel: [ 4247.210755] mtk_soc_eth 1b100000.ethernet eth0: configuring for fixed/2500base-x link mode
Tue Jan 10 12:34:33 2023 kern.info kernel: [ 4247.219222] mtk_soc_eth 1b100000.ethernet eth0: Link is Up - 2.5Gbps/Full - flow control rx/tx
Tue Jan 10 12:35:21 2023 authpriv.info dropbear[7415]: Child connection from XXX
Tue Jan 10 12:35:21 2023 authpriv.notice dropbear[7415]: Pubkey auth succeeded for 'root' with ssh-rsa key SHA256:XXX from XXX

ozzloy · March 14, 2023, 11:59pm

@psherman, @mk24 thanks for the help. i'm going to go afk now, for real. be back in an hour-ish.

ozzloy · March 15, 2023, 6:47am

reset to default settings, ethernet worked fine, 192.168.1.1

turned on wifi with former essid and pw, and immediately was unable to connect.

reset to default settings again. ethernet worked fine. enabled wifi, but different essid and pw (just to be sure), and that's working fine too.

so now i think it really is something to do with all the tasmota devices connecting. i have maybe 20 different devices (bulbs and dimmers). does that sound plausible?

psherman · March 15, 2023, 6:54am

Let’s see the configs.

Please copy the output of the following commands and post it here using the "Preformatted text </> " button:

Remember to redact passwords, MAC addresses and any public IP addresses you may have:

cat /etc/config/network
cat /etc/config/wireless
cat /etc/config/dhcp
cat /etc/config/firewall

ozzloy · March 15, 2023, 7:24am

@psherman thanks for having a look!

root@router:~# 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 'ffff:ffff:ffff::/48'

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'
        option proto 'static'
        option ipaddr '192.168.1.1'
        option netmask '255.255.255.0'
        option ip6assign '60'

config interface 'wan'
        option device 'wan'
        option proto 'dhcp'

config interface 'wan6'
        option device 'wan'
        option proto 'dhcpv6'

root@router:~# cat /etc/config/wireless

config wifi-device 'radio0'
        option type 'mac80211'
        option path 'platform/18000000.wmac'
        option channel '1'
        option band '2g'
        option htmode 'HT20'
        option cell_density '0'
        option country 'US'

config wifi-iface 'default_radio0'
        option device 'radio0'
        option network 'lan'
        option mode 'ap'
        option encryption 'psk2'
        option key 'password'
        option ssid 'essid'

config wifi-device 'radio1'
        option type 'mac80211'
        option path '1a143000.pcie/pci0000:00/0000:00:00.0/0000:01:00.0'
        option channel '36'
        option band '5g'
        option htmode 'HE80'
        option cell_density '0'
        option country 'US'

config wifi-iface 'default_radio1'
        option device 'radio1'
        option network 'lan'
        option mode 'ap'
        option encryption 'psk2'
        option key 'password'
        option ssid 'e55id'

root@router:~# 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@router:~# 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		ffff::/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	00:11:22:33:44:55
#	option src_port		1024
#	option src_dport	80
#	option dest_ip	194.25.2.129
#	option dest_port	120
#	option proto	tcp

ozzloy · March 15, 2023, 8:56pm

internet still works today with default settings. in about 2 hours, i'll try changing it back to the wifi essid and pw that all the tasmota devices will connect to and see what happens.

thanks again for the help!