Hi,

I've got a network setup consisting of 3 P7 in Access Point mode via the modem/router from my internet provider (Vodafone Germany).

Once in a while, every 2-5 days, Decos go offline, all LEDs turning red. Network itself is functioning, just no internet connection. At the same time there is an internet connection in the router (double-checked via it's WiFi and Ethernet).

Restarting Decos (or just main one) helps.

I've tried switching Decos, assigning another one as main to no avail.

I've tried reading logs and found nothing interesting, see excerpt below (the problem started around 18:38, 18:44 I've rebooted Decos).

What could I do to troubleshoot this annoying issue? Any ideas?
Thank you.

Fri Jul  2 17:20:44 2021 daemon.info hostapd: ath12: STA 5a:d4:f7:25:85:1b RADIUS: starting accounting session AE6236A6B90CBE15
Fri Jul  2 17:20:44 2021 daemon.info hostapd: ath12: STA 5a:d4:f7:25:85:1b WPA: pairwise key handshake completed (RSN)
Fri Jul  2 17:20:44 2021 daemon.err client_mgmt: wireless client associate or disassociate.
Fri Jul  2 17:20:44 2021 daemon.err client_mgmt: client_mac:5A-D4-F7-25-85-1B, client_ifname:ath12, client_action:associate
Fri Jul  2 17:20:44 2021 daemon.err client_mgmt: client(5A-D4-F7-25-85-1B) assocaite by if(ath12).
Fri Jul  2 18:38:48 2021 daemon.info conn-indicator: <32330300> Invoke led: conn[1]
Fri Jul  2 18:38:48 2021 daemon.info leds: Event: conn.offline
Fri Jul  2 18:38:48 2021 daemon.notice conn-indicator: Connectivity changed: ONLINE(0x0) -> OFFLINE(0x1)
Fri Jul  2 18:38:48 2021 daemon.info conn-indicator: Notify inet.down
Fri Jul  2 18:38:48 2021 user.notice smartip: [lan]  AP mode AP online status changed(ONLINE --> OFFLINE).
Fri Jul  2 18:38:48 2021 user.notice smartip: [lan] stop domain_login
Fri Jul  2 18:38:48 2021 user.err smartip: [lan] !!ip addr del!! ip addr del 192.168.178.37 dev br-lan
Fri Jul  2 18:38:48 2021 user.notice smartip: [lan] route del default dev br-lan
Fri Jul  2 18:38:48 2021 user.notice smartip: [lan] smartipd restart udhcpc
Fri Jul  2 18:38:48 2021 user.info smartip: [lan] pid is 16339
Fri Jul  2 18:38:48 2021 user.notice smartip: [lan] kill process udhcpc
Fri Jul  2 18:38:48 2021 daemon.err udhcpc[16339]: Received SIGTERM
Fri Jul  2 18:38:48 2021 daemon.err udhcpc[12770]: udhcpc (v1.22.1) started
Fri Jul  2 18:38:48 2021 user.notice smartip: [lan] start udhcpc
Fri Jul  2 18:38:48 2021 user.info smartip: [lan] cmd /sbin/udhcpc -i br-lan -p /tmp/udhcpc_br-lan.pid -s dynamic -h deco-P7 -t 6 -m normal -S &
Fri Jul  2 18:38:48 2021 daemon.err udhcpc[12770]: Sending discover...
Fri Jul  2 18:38:48 2021 daemon.err udhcpc[12770]: Sending select for 192.168.178.37...
Fri Jul  2 18:38:48 2021 daemon.err udhcpc[12770]: get lease time form ACK:864000
Fri Jul  2 18:38:48 2021 daemon.info udhcpc[12770]: Lease of 192.168.178.37 obtained, lease time 864000
Fri Jul  2 18:38:49 2021 user.notice smartip: [lan] detect sucess to update lanIp and write dns file

Fri Jul  2 18:38:49 2021 user.notice smartip: [lan] Notify the lan ip changed.
Fri Jul  2 18:38:49 2021 user.info smartip: [lan] ubus call client_mgmt update_lan '{ "ipv4_addr": "192.168.178.37", "ipv4_mask": 24 }'
Fri Jul  2 18:38:49 2021 user.notice smartip: [lan] config IP:  ifconfig br-lan 192.168.178.37 netmask 255.255.255.0
Fri Jul  2 18:38:49 2021 user.info smartip: [lan] echo 192.168.178.37 > /tmp/runtime_ip_lan
Fri Jul  2 18:38:49 2021 user.notice smartip: [lan] route del default dev br-lan
Fri Jul  2 18:38:49 2021 user.notice smartip: [lan] route add default gw 192.168.178.1
Fri Jul  2 18:38:50 2021 user.info root: guest-eth reload gw 
Fri Jul  2 18:38:52 2021 user.notice smartip: [lan] /etc/init.d/guest_eth reload gw 192.168.178.1
Fri Jul  2 18:38:52 2021 user.notice smartip: [lan] restart miniupnpd
Fri Jul  2 18:38:52 2021 user.notice smartip: [lan] Send Message -- TYPE:lan, EVENT:UPDATE
Fri Jul  2 18:38:52 2021 user.emerg syslog: tp217,505[12814]:
Fri Jul  2 18:38:52 2021 user.info smartip: [lan] wait pid
Fri Jul  2 18:38:52 2021 user.notice smartip: [lan] restart domain_login
Fri Jul  2 18:38:52 2021 user.info smartip: [lan] echo 192.168.178.37 > /tmp/runtime_ip_lan
Fri Jul  2 18:39:28 2021 daemon.err uhttpd[3414]: iptables: No chain/target/match by that name.
Fri Jul  2 18:39:28 2021 daemon.err uhttpd[3414]: iptables v1.4.21: Couldn't load target `domain_login_rule':No such file or directory
Fri Jul  2 18:39:28 2021 daemon.err uhttpd[3414]: 
Fri Jul  2 18:39:28 2021 daemon.err uhttpd[3414]: Try `iptables -h' or 'iptables --help' for more information.
Fri Jul  2 18:39:28 2021 daemon.err uhttpd[3414]: iptables: No chain/target/match by that name.
Fri Jul  2 18:39:28 2021 daemon.err uhttpd[3414]: iptables: No chain/target/match by that name.
Fri Jul  2 18:39:28 2021 user.info syslog: module is not loaded
Fri Jul  2 18:39:28 2021 user.emerg syslog: tp215,22[13782]:
Fri Jul  2 18:39:31 2021 daemon.err uhttpd[3414]: ath22     no frequency information.
Fri Jul  2 18:39:31 2021 daemon.err uhttpd[3414]: 
Fri Jul  2 18:39:34 2021 daemon.err uhttpd[3414]: ath22     no frequency information.
Fri Jul  2 18:39:34 2021 daemon.err uhttpd[3414]: 
Fri Jul  2 18:39:41 2021 daemon.err uhttpd[3414]: ath22     no frequency information.
Fri Jul  2 18:39:41 2021 daemon.err uhttpd[3414]: 
Fri Jul  2 18:44:15 2021 daemon.info conn-indicator: <32330301> Invoke led: conn[0]
Fri Jul  2 18:44:15 2021 daemon.info leds: Event: conn.online