I'm having an issue with internet connection after boot with on OpenWRT 21.02.3 recently installed on my Netgear R7800. Before the upgrade to the recent 21 version I never had the same problem on my 19.07 installation.
So my problem is that basically after almost every boot I have no internet connection - PPPoE connection is initiated and the interface does get an IP address, but I suspect that for some reason it is not able to receive any data. The router is connected to a bridged modem.
First of all thank a lot for your help.
Now I am noticing that this problem is not exclusive to boot time, it happens every few restarts of the wan interface.
I guess I could make a cron script to check network connectivity and restart wan if there is none but that seems a bit crooked.
root@OpenWrt:~# logread -f
Fri Jun 3 16:59:23 2022 daemon.info pppd[4677]: Terminating on signal 15
Fri Jun 3 16:59:23 2022 daemon.info pppd[4677]: Connect time 10.7 minutes.
Fri Jun 3 16:59:23 2022 daemon.info pppd[4677]: Sent 3483758 bytes, received 32837679 bytes.
Fri Jun 3 16:59:23 2022 daemon.info avahi-daemon[1629]: Interface pppoe-wan.IPv4 no longer relevant for mDNS.
Fri Jun 3 16:59:23 2022 daemon.info avahi-daemon[1629]: Leaving mDNS multicast group on interface pppoe-wan.IPv4 with address 87.71.37.253.
Fri Jun 3 16:59:23 2022 daemon.notice netifd: Network device 'pppoe-wan' link is down
Fri Jun 3 16:59:23 2022 daemon.info avahi-daemon[1629]: Withdrawing address record for 87.71.37.253 on pppoe-wan.
Fri Jun 3 16:59:23 2022 daemon.notice pppd[4677]: Connection terminated.
Fri Jun 3 16:59:23 2022 daemon.info pppd[4677]: Sent PADT
Fri Jun 3 16:59:23 2022 daemon.info pppd[4677]: Exit.
Fri Jun 3 16:59:23 2022 daemon.notice netifd: Interface 'wan' is now down
Fri Jun 3 16:59:23 2022 daemon.info avahi-daemon[1629]: Interface eth0.IPv6 no longer relevant for mDNS.
Fri Jun 3 16:59:23 2022 daemon.info avahi-daemon[1629]: Leaving mDNS multicast group on interface eth0.IPv6 with address fe80::8e3b:adff:fea5:4e8f.
Fri Jun 3 16:59:23 2022 daemon.notice netifd: Interface 'wan' is disabled
Fri Jun 3 16:59:23 2022 daemon.info avahi-daemon[1629]: Withdrawing address record for fe80::8e3b:adff:fea5:4e8f on eth0.
Fri Jun 3 16:59:23 2022 kern.info kernel: [ 1469.526768] ipq806x-gmac-dwmac 37200000.ethernet eth0: Link is Down
Fri Jun 3 16:59:23 2022 kern.info kernel: [ 1469.531102] dwmac1000: Master AXI performs any burst length
Fri Jun 3 16:59:23 2022 kern.info kernel: [ 1469.531840] ipq806x-gmac-dwmac 37200000.ethernet eth0: No Safety Features support found
Fri Jun 3 16:59:23 2022 kern.info kernel: [ 1469.537478] ipq806x-gmac-dwmac 37200000.ethernet eth0: IEEE 1588-2008 Advanced Timestamp supported
Fri Jun 3 16:59:23 2022 kern.info kernel: [ 1469.545476] ipq806x-gmac-dwmac 37200000.ethernet eth0: registered PTP clock
Fri Jun 3 16:59:23 2022 kern.info kernel: [ 1469.554495] ipq806x-gmac-dwmac 37200000.ethernet eth0: configuring for fixed/rgmii link mode
Fri Jun 3 16:59:23 2022 kern.info kernel: [ 1469.563526] ipq806x-gmac-dwmac 37200000.ethernet eth0: Link is Up - 1Gbps/Full - flow control off
Fri Jun 3 16:59:23 2022 kern.info kernel: [ 1469.570099] IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
Fri Jun 3 16:59:23 2022 daemon.notice netifd: Interface 'wan' is enabled
Fri Jun 3 16:59:23 2022 daemon.notice netifd: Interface 'wan' is setting up now
Fri Jun 3 16:59:23 2022 daemon.warn dnsmasq[3936]: no servers found in /tmp/resolv.conf.d/resolv.conf.auto, will retry
Fri Jun 3 16:59:23 2022 daemon.err insmod: module is already loaded - slhc
Fri Jun 3 16:59:23 2022 daemon.err insmod: module is already loaded - ppp_generic
Fri Jun 3 16:59:23 2022 daemon.err insmod: module is already loaded - pppox
Fri Jun 3 16:59:23 2022 daemon.err insmod: module is already loaded - pppoe
Fri Jun 3 16:59:23 2022 daemon.info pppd[4891]: Plugin rp-pppoe.so loaded.
Fri Jun 3 16:59:23 2022 daemon.info pppd[4891]: RP-PPPoE plugin version 3.8p compiled against pppd 2.4.8
Fri Jun 3 16:59:23 2022 daemon.notice pppd[4891]: pppd 2.4.8 started by root, uid 0
Fri Jun 3 16:59:23 2022 daemon.info pppd[4891]: PPP session is 7424
Fri Jun 3 16:59:23 2022 daemon.warn pppd[4891]: Connected to 0c:a4:02:07:c9:a9 via interface eth0.2
Fri Jun 3 16:59:23 2022 kern.info kernel: [ 1469.764275] pppoe-wan: renamed from ppp0
Fri Jun 3 16:59:23 2022 daemon.info pppd[4891]: Renamed interface ppp0 to pppoe-wan
Fri Jun 3 16:59:23 2022 daemon.info pppd[4891]: Using interface pppoe-wan
Fri Jun 3 16:59:23 2022 daemon.notice pppd[4891]: Connect: pppoe-wan <--> eth0.2
Fri Jun 3 16:59:23 2022 daemon.notice pppd[4891]: PAP authentication succeeded
Fri Jun 3 16:59:23 2022 daemon.notice pppd[4891]: peer from calling number 0C:A4:02:07:C9:A9 authorized
Fri Jun 3 16:59:23 2022 daemon.notice pppd[4891]: local IP address 77.127.188.242
Fri Jun 3 16:59:23 2022 daemon.notice pppd[4891]: remote IP address 82.102.129.102
Fri Jun 3 16:59:23 2022 daemon.notice pppd[4891]: primary DNS address 80.179.55.100
Fri Jun 3 16:59:23 2022 daemon.notice pppd[4891]: secondary DNS address 80.179.52.100
Fri Jun 3 16:59:23 2022 daemon.info avahi-daemon[1629]: Joining mDNS multicast group on interface pppoe-wan.IPv4 with address 77.127.188.242.
Fri Jun 3 16:59:23 2022 daemon.info avahi-daemon[1629]: New relevant interface pppoe-wan.IPv4 for mDNS.
Fri Jun 3 16:59:23 2022 daemon.info avahi-daemon[1629]: Registering new address record for 77.127.188.242 on pppoe-wan.IPv4.
Fri Jun 3 16:59:23 2022 daemon.notice netifd: Network device 'pppoe-wan' link is up
Fri Jun 3 16:59:23 2022 daemon.notice netifd: Interface 'wan' is now up
Fri Jun 3 16:59:23 2022 daemon.info dnsmasq[3936]: reading /tmp/resolv.conf.d/resolv.conf.auto
Fri Jun 3 16:59:23 2022 daemon.info dnsmasq[3936]: using only locally-known addresses for domain test
Fri Jun 3 16:59:23 2022 daemon.info dnsmasq[3936]: using only locally-known addresses for domain onion
Fri Jun 3 16:59:23 2022 daemon.info dnsmasq[3936]: using only locally-known addresses for domain localhost
Fri Jun 3 16:59:23 2022 daemon.info dnsmasq[3936]: using only locally-known addresses for domain local
Fri Jun 3 16:59:23 2022 daemon.info dnsmasq[3936]: using only locally-known addresses for domain invalid
Fri Jun 3 16:59:23 2022 daemon.info dnsmasq[3936]: using only locally-known addresses for domain bind
Fri Jun 3 16:59:23 2022 daemon.info dnsmasq[3936]: using only locally-known addresses for domain lan
Fri Jun 3 16:59:23 2022 daemon.info dnsmasq[3936]: using nameserver 80.179.55.100#53
Fri Jun 3 16:59:23 2022 daemon.info dnsmasq[3936]: using nameserver 80.179.52.100#53
Fri Jun 3 16:59:23 2022 user.notice firewall: Reloading firewall due to ifup of wan (pppoe-wan)
Fri Jun 3 16:59:24 2022 daemon.info avahi-daemon[1629]: Joining mDNS multicast group on interface eth0.IPv6 with address fe80::8e3b:adff:fea5:4e8f.
Fri Jun 3 16:59:24 2022 daemon.info avahi-daemon[1629]: New relevant interface eth0.IPv6 for mDNS.
Fri Jun 3 16:59:24 2022 daemon.info avahi-daemon[1629]: Registering new address record for fe80::8e3b:adff:fea5:4e8f on eth0.*.
root@OpenWrt:~# dmesg
[ 1469.526768] ipq806x-gmac-dwmac 37200000.ethernet eth0: Link is Down
[ 1469.531102] dwmac1000: Master AXI performs any burst length
[ 1469.531840] ipq806x-gmac-dwmac 37200000.ethernet eth0: No Safety Features support found
[ 1469.537478] ipq806x-gmac-dwmac 37200000.ethernet eth0: IEEE 1588-2008 Advanced Timestamp supported
[ 1469.545476] ipq806x-gmac-dwmac 37200000.ethernet eth0: registered PTP clock
[ 1469.554495] ipq806x-gmac-dwmac 37200000.ethernet eth0: configuring for fixed/rgmii link mode
[ 1469.563526] ipq806x-gmac-dwmac 37200000.ethernet eth0: Link is Up - 1Gbps/Full - flow control off
[ 1469.570099] IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
[ 1469.764275] pppoe-wan: renamed from ppp0
No internet connection:
root@OpenWrt:~# logread -f
Fri Jun 3 17:10:46 2022 daemon.info pppd[8071]: Terminating on signal 15
Fri Jun 3 17:10:46 2022 daemon.info pppd[8071]: Connect time 0.6 minutes.
Fri Jun 3 17:10:46 2022 daemon.info pppd[8071]: Sent 94451 bytes, received 361328 bytes.
Fri Jun 3 17:10:46 2022 daemon.info avahi-daemon[1629]: Interface pppoe-wan.IPv4 no longer relevant for mDNS.
Fri Jun 3 17:10:46 2022 daemon.info avahi-daemon[1629]: Leaving mDNS multicast group on interface pppoe-wan.IPv4 with address 213.8.187.102.
Fri Jun 3 17:10:46 2022 daemon.notice netifd: Network device 'pppoe-wan' link is down
Fri Jun 3 17:10:46 2022 daemon.info avahi-daemon[1629]: Withdrawing address record for 213.8.187.102 on pppoe-wan.
Fri Jun 3 17:10:46 2022 daemon.notice pppd[8071]: Connection terminated.
Fri Jun 3 17:10:46 2022 daemon.info pppd[8071]: Sent PADT
Fri Jun 3 17:10:46 2022 daemon.info pppd[8071]: Exit.
Fri Jun 3 17:10:46 2022 daemon.notice netifd: Interface 'wan' is now down
Fri Jun 3 17:10:46 2022 daemon.info avahi-daemon[1629]: Interface eth0.IPv6 no longer relevant for mDNS.
Fri Jun 3 17:10:46 2022 daemon.info avahi-daemon[1629]: Leaving mDNS multicast group on interface eth0.IPv6 with address fe80::8e3b:adff:fea5:4e8f.
Fri Jun 3 17:10:46 2022 daemon.info avahi-daemon[1629]: Withdrawing address record for fe80::8e3b:adff:fea5:4e8f on eth0.
Fri Jun 3 17:10:46 2022 daemon.notice netifd: Interface 'wan' is disabled
Fri Jun 3 17:10:46 2022 kern.info kernel: [ 2152.422579] ipq806x-gmac-dwmac 37200000.ethernet eth0: Link is Down
Fri Jun 3 17:10:46 2022 kern.info kernel: [ 2152.434517] dwmac1000: Master AXI performs any burst length
Fri Jun 3 17:10:46 2022 kern.info kernel: [ 2152.434552] ipq806x-gmac-dwmac 37200000.ethernet eth0: No Safety Features support found
Fri Jun 3 17:10:46 2022 kern.info kernel: [ 2152.438900] ipq806x-gmac-dwmac 37200000.ethernet eth0: IEEE 1588-2008 Advanced Timestamp supported
Fri Jun 3 17:10:46 2022 kern.info kernel: [ 2152.447112] ipq806x-gmac-dwmac 37200000.ethernet eth0: registered PTP clock
Fri Jun 3 17:10:46 2022 kern.info kernel: [ 2152.456010] ipq806x-gmac-dwmac 37200000.ethernet eth0: configuring for fixed/rgmii link mode
Fri Jun 3 17:10:46 2022 daemon.notice netifd: Interface 'wan' is enabled
Fri Jun 3 17:10:46 2022 daemon.notice netifd: Interface 'wan' is setting up now
Fri Jun 3 17:10:46 2022 kern.info kernel: [ 2152.464288] ipq806x-gmac-dwmac 37200000.ethernet eth0: Link is Up - 1Gbps/Full - flow control off
Fri Jun 3 17:10:46 2022 daemon.warn dnsmasq[3936]: no servers found in /tmp/resolv.conf.d/resolv.conf.auto, will retry
Fri Jun 3 17:10:46 2022 kern.info kernel: [ 2152.481198] IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
Fri Jun 3 17:10:46 2022 daemon.err insmod: module is already loaded - slhc
Fri Jun 3 17:10:46 2022 daemon.err insmod: module is already loaded - ppp_generic
Fri Jun 3 17:10:46 2022 daemon.err insmod: module is already loaded - pppox
Fri Jun 3 17:10:46 2022 daemon.err insmod: module is already loaded - pppoe
Fri Jun 3 17:10:46 2022 daemon.info pppd[8250]: Plugin rp-pppoe.so loaded.
Fri Jun 3 17:10:46 2022 daemon.info pppd[8250]: RP-PPPoE plugin version 3.8p compiled against pppd 2.4.8
Fri Jun 3 17:10:46 2022 daemon.notice pppd[8250]: pppd 2.4.8 started by root, uid 0
Fri Jun 3 17:10:46 2022 daemon.info pppd[8250]: PPP session is 1722
Fri Jun 3 17:10:46 2022 daemon.warn pppd[8250]: Connected to 0c:a4:02:02:e5:a9 via interface eth0.2
Fri Jun 3 17:10:46 2022 kern.info kernel: [ 2152.661851] pppoe-wan: renamed from ppp0
Fri Jun 3 17:10:46 2022 daemon.info pppd[8250]: Renamed interface ppp0 to pppoe-wan
Fri Jun 3 17:10:46 2022 daemon.info pppd[8250]: Using interface pppoe-wan
Fri Jun 3 17:10:46 2022 daemon.notice pppd[8250]: Connect: pppoe-wan <--> eth0.2
Fri Jun 3 17:10:46 2022 daemon.notice pppd[8250]: PAP authentication succeeded
Fri Jun 3 17:10:46 2022 daemon.notice pppd[8250]: peer from calling number 0C:A4:02:02:E5:A9 authorized
Fri Jun 3 17:10:46 2022 daemon.notice pppd[8250]: local IP address 87.70.166.65
Fri Jun 3 17:10:46 2022 daemon.notice pppd[8250]: remote IP address 82.102.129.119
Fri Jun 3 17:10:46 2022 daemon.notice pppd[8250]: primary DNS address 80.179.52.100
Fri Jun 3 17:10:46 2022 daemon.notice pppd[8250]: secondary DNS address 80.179.55.100
Fri Jun 3 17:10:46 2022 daemon.info avahi-daemon[1629]: Joining mDNS multicast group on interface pppoe-wan.IPv4 with address 87.70.166.65.
Fri Jun 3 17:10:46 2022 daemon.info avahi-daemon[1629]: New relevant interface pppoe-wan.IPv4 for mDNS.
Fri Jun 3 17:10:46 2022 daemon.info avahi-daemon[1629]: Registering new address record for 87.70.166.65 on pppoe-wan.IPv4.
Fri Jun 3 17:10:46 2022 daemon.notice netifd: Network device 'pppoe-wan' link is up
Fri Jun 3 17:10:46 2022 daemon.notice netifd: Interface 'wan' is now up
Fri Jun 3 17:10:46 2022 daemon.info dnsmasq[3936]: reading /tmp/resolv.conf.d/resolv.conf.auto
Fri Jun 3 17:10:46 2022 daemon.info dnsmasq[3936]: using only locally-known addresses for domain test
Fri Jun 3 17:10:46 2022 daemon.info dnsmasq[3936]: using only locally-known addresses for domain onion
Fri Jun 3 17:10:46 2022 daemon.info dnsmasq[3936]: using only locally-known addresses for domain localhost
Fri Jun 3 17:10:46 2022 daemon.info dnsmasq[3936]: using only locally-known addresses for domain local
Fri Jun 3 17:10:46 2022 daemon.info dnsmasq[3936]: using only locally-known addresses for domain invalid
Fri Jun 3 17:10:46 2022 daemon.info dnsmasq[3936]: using only locally-known addresses for domain bind
Fri Jun 3 17:10:46 2022 daemon.info dnsmasq[3936]: using only locally-known addresses for domain lan
Fri Jun 3 17:10:46 2022 daemon.info dnsmasq[3936]: using nameserver 80.179.52.100#53
Fri Jun 3 17:10:46 2022 daemon.info dnsmasq[3936]: using nameserver 80.179.55.100#53
Fri Jun 3 17:10:46 2022 user.notice firewall: Reloading firewall due to ifup of wan (pppoe-wan)
Fri Jun 3 17:10:47 2022 daemon.info avahi-daemon[1629]: Joining mDNS multicast group on interface eth0.IPv6 with address fe80::8e3b:adff:fea5:4e8f.
Fri Jun 3 17:10:47 2022 daemon.info avahi-daemon[1629]: New relevant interface eth0.IPv6 for mDNS.
Fri Jun 3 17:10:47 2022 daemon.info avahi-daemon[1629]: Registering new address record for fe80::8e3b:adff:fea5:4e8f on eth0.*.
root@OpenWrt:~# dmesg
[ 2152.422579] ipq806x-gmac-dwmac 37200000.ethernet eth0: Link is Down
[ 2152.434517] dwmac1000: Master AXI performs any burst length
[ 2152.434552] ipq806x-gmac-dwmac 37200000.ethernet eth0: No Safety Features support found
[ 2152.438900] ipq806x-gmac-dwmac 37200000.ethernet eth0: IEEE 1588-2008 Advanced Timestamp supported
[ 2152.447112] ipq806x-gmac-dwmac 37200000.ethernet eth0: registered PTP clock
[ 2152.456010] ipq806x-gmac-dwmac 37200000.ethernet eth0: configuring for fixed/rgmii link mode
[ 2152.464288] ipq806x-gmac-dwmac 37200000.ethernet eth0: Link is Up - 1Gbps/Full - flow control off
[ 2152.481198] IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
[ 2152.661851] pppoe-wan: renamed from ppp0