Recently, my Deco network started to crash quite frequently (10-15 times a day); it lost the connection for 1-2 minutes, and afterwards, it returned to normal.
I changed the network cable and tested it with another ISP Modem.
I tried it too, https://community.tp-link.com/en/home/kb/detail/412552
I don't have more clues to solve it.

 

Mon Feb 12 11:03:44 2024 user.notice dhcpv6: start dial, iface=br-wan

Mon Feb 12 11:03:45 2024 user.notice IMPROXY: INFO[imp_verify_multicast_addr@245]: Group address 224.0.0.251 is Local Network Control Block

Mon Feb 12 11:03:48 2024 daemon.err /usr/bin/apsd: nl_wifi_newlink_handle:135: Error: config_index_to_name fail

Mon Feb 12 11:03:48 2024 daemon.err /usr/bin/apsd: nl_wifi_newlink_handle:135: Error: config_index_to_name fail

Mon Feb 12 11:03:48 2024 daemon.err /usr/bin/apsd: nl_wifi_newlink_handle:135: Error: config_index_to_name fail

Mon Feb 12 11:03:48 2024 daemon.err /usr/bin/apsd: nl_wifi_newlink_handle:135: Error: config_index_to_name fail

Mon Feb 12 11:03:48 2024 daemon.err /usr/bin/apsd: nl_wifi_newlink_handle:135: Error: config_index_to_name fail

Mon Feb 12 11:03:48 2024 daemon.err nrd[5246]: send ioctl failed

Mon Feb 12 11:03:49 2024 daemon.notice netifd: Network device 'br-wan' link is down

Mon Feb 12 11:03:49 2024 daemon.notice netifd: Interface 'wan' has link connectivity loss

Mon Feb 12 11:03:49 2024 daemon.notice netifd: Interface 'wanv6' has link connectivity loss

Mon Feb 12 11:03:49 2024 daemon.notice conn-indicator: Connectivity changed: ONLINE(0x0) -> OFFLINE(0x1)

Mon Feb 12 11:03:49 2024 user.notice dhcpv6: teardown, interface=wanv6 ifname=br-wan

Mon Feb 12 11:03:49 2024 user.notice dhcpv6: teardown, ip -6 route del ::/0 dev br-wan

Mon Feb 12 11:03:49 2024 daemon.notice netifd: wanv6 (12586): dhcp6_ctl_init 94 addr = ::1, port = 5546

Mon Feb 12 11:03:49 2024 daemon.notice netifd: wanv6 (12586): dhcp6_ctl_init 143 dhcp6_ctl_init succeed

Mon Feb 12 11:03:49 2024 daemon.notice netifd: wanv6 (12586): client6_init 461 client6_init succeed

Mon Feb 12 11:03:50 2024 daemon.notice netifd: Interface 'wanv6' is now down

Mon Feb 12 11:03:53 2024 daemon.err udhcpd[5750]: Sending ACK to 192.168.68.102

Mon Feb 12 11:03:53 2024 daemon.err udhcpd[5750]: clear ip c0a84466

Mon Feb 12 11:03:54 2024 daemon.notice netifd: Network device 'br-wan' link is up

Mon Feb 12 11:03:54 2024 daemon.notice netifd: Interface 'wan' has link connectivity

Mon Feb 12 11:03:54 2024 daemon.notice netifd: Interface 'wanv6' has link connectivity

Mon Feb 12 11:03:54 2024 daemon.notice netifd: Interface 'wanv6' is setting up now

Mon Feb 12 11:03:54 2024 daemon.notice conn-indicator: Connectivity changed: OFFLINE(0x1) -> ONLINE(0x0)

Mon Feb 12 11:03:54 2024 user.notice dhcpv6: start dial, iface=br-wan

Mon Feb 12 11:03:56 2024 user.notice IMPROXY: INFO[imp_input_report_mldv2@461]: MLD_MODE_IS_EXCLUDE

Mon Feb 12 11:03:56 2024 user.notice IMPROXY: INFO[imp_input_report_mldv2@461]: MLD_MODE_IS_EXCLUDE

Mon Feb 12 11:03:58 2024 daemon.err /usr/bin/apsd: nl_wifi_newlink_handle:135: Error: config_index_to_name fail

Mon Feb 12 11:03:58 2024 daemon.err /usr/bin/apsd: nl_wifi_newlink_handle:135: Error: config_index_to_name fail

Mon Feb 12 11:03:58 2024 daemon.err /usr/bin/apsd: nl_wifi_newlink_handle:135: Error: config_index_to_name fail

Mon Feb 12 11:03:58 2024 daemon.err /usr/bin/apsd: nl_wifi_newlink_handle:135: Error: config_index_to_name fail

Mon Feb 12 11:03:58 2024 daemon.err /usr/bin/apsd: nl_wifi_newlink_handle:135: Error: config_index_to_name fail

Mon Feb 12 11:03:59 2024 daemon.notice netifd: Network device 'br-wan' link is down

Mon Feb 12 11:03:59 2024 daemon.notice netifd: Interface 'wan' has link connectivity loss

Mon Feb 12 11:03:59 2024 daemon.notice netifd: Interface 'wanv6' has link connectivity loss

Mon Feb 12 11:03:59 2024 daemon.notice conn-indicator: Connectivity changed: ONLINE(0x0) -> OFFLINE(0x1)

Mon Feb 12 11:03:59 2024 user.notice dhcpv6: teardown, interface=wanv6 ifname=br-wan

Mon Feb 12 11:03:59 2024 user.notice dhcpv6: teardown, ip -6 route del ::/0 dev br-wan

Mon Feb 12 11:03:59 2024 daemon.notice netifd: wanv6 (13294): dhcp6_ctl_init 94 addr = ::1, port = 5546

Mon Feb 12 11:03:59 2024 daemon.notice netifd: wanv6 (13294): dhcp6_ctl_init 143 dhcp6_ctl_init succeed

Mon Feb 12 11:03:59 2024 daemon.notice netifd: wanv6 (13294): client6_init 461 client6_init succeed

Mon Feb 12 11:04:00 2024 daemon.notice netifd: Interface 'wanv6' is now down

Mon Feb 12 11:04:03 2024 user.warn IMPROXY: WARNING[mcast_recv_igmp@753]: Don't exist this Downstream VIF

Mon Feb 12 11:04:04 2024 daemon.notice netifd: Network device 'br-wan' link is up

Mon Feb 12 11:04:04 2024 daemon.notice netifd: Interface 'wan' has link connectivity

Mon Feb 12 11:04:04 2024 daemon.notice netifd: Interface 'wanv6' has link connectivity

Mon Feb 12 11:04:04 2024 daemon.notice netifd: Interface 'wanv6' is setting up now

Mon Feb 12 11:04:04 2024 daemon.notice conn-indicator: Connectivity changed: OFFLINE(0x1) -> ONLINE(0x0)

Mon Feb 12 11:04:04 2024 user.notice dhcpv6: start dial, iface=br-wan

Mon Feb 12 11:04:08 2024 daemon.err /usr/bin/apsd: nl_wifi_newlink_handle:135: Error: config_index_to_name fail

Mon Feb 12 11:04:08 2024 daemon.err /usr/bin/apsd: nl_wifi_newlink_handle:135: Error: config_index_to_name fail

Mon Feb 12 11:04:08 2024 daemon.err /usr/bin/apsd: nl_wifi_newlink_handle:135: Error: config_index_to_name fail

Mon Feb 12 11:04:08 2024 daemon.err /usr/bin/apsd: nl_wifi_newlink_handle:135: Error: config_index_to_name fail

Mon Feb 12 11:04:08 2024 daemon.err /usr/bin/apsd: nl_wifi_newlink_handle:135: Error: config_index_to_name fail

Mon Feb 12 11:04:09 2024 daemon.notice netifd: Network device 'br-wan' link is down

Mon Feb 12 11:04:09 2024 daemon.notice netifd: Interface 'wan' has link connectivity loss

Mon Feb 12 11:04:09 2024 daemon.notice netifd: Interface 'wanv6' has link connectivity loss

Mon Feb 12 11:04:09 2024 daemon.notice conn-indicator: Connectivity changed: ONLINE(0x0) -> OFFLINE(0x1)

Mon Feb 12 11:04:09 2024 user.notice dhcpv6: teardown, interface=wanv6 ifname=br-wan

Mon Feb 12 11:04:09 2024 user.notice dhcpv6: teardown, ip -6 route del ::/0 dev br-wan

Mon Feb 12 11:04:09 2024 daemon.notice netifd: wanv6 (14018): dhcp6_ctl_init 94 addr = ::1, port = 5546

Mon Feb 12 11:04:09 2024 daemon.notice netifd: wanv6 (14018): dhcp6_ctl_init 143 dhcp6_ctl_init succeed

Mon Feb 12 11:04:09 2024 daemon.notice netifd: wanv6 (14018): client6_init 461 client6_init succeed

Mon Feb 12 11:04:10 2024 daemon.notice netifd: Interface 'wanv6' is now down

Mon Feb 12 11:04:13 2024 daemon.notice netifd: Network device 'br-wan' link is up

Mon Feb 12 11:04:13 2024 daemon.notice netifd: Interface 'wan' has link connectivity

Mon Feb 12 11:04:13 2024 daemon.notice netifd: Interface 'wanv6' has link connectivity

Mon Feb 12 11:04:13 2024 daemon.notice netifd: Interface 'wanv6' is setting up now

Mon Feb 12 11:04:13 2024 daemon.notice conn-indicator: Connectivity changed: OFFLINE(0x1) -> ONLINE(0x0)

Mon Feb 12 11:04:13 2024 user.notice dhcpv6: start dial, iface=br-wan

Mon Feb 12 11:04:13 2024 daemon.err nrd[5246]: send ioctl failed

Mon Feb 12 11:04:18 2024 daemon.notice netifd: Network device 'br-wan' link is down

Mon Feb 12 11:04:18 2024 daemon.notice netifd: Interface 'wan' has link connectivity loss

Mon Feb 12 11:04:18 2024 daemon.notice netifd: Interface 'wanv6' has link connectivity loss

Mon Feb 12 11:04:18 2024 daemon.notice conn-indicator: Connectivity changed: ONLINE(0x0) -> OFFLINE(0x1)

Mon Feb 12 11:04:18 2024 daemon.err /usr/bin/apsd: nl_wifi_newlink_handle:135: Error: config_index_to_name fail

Mon Feb 12 11:04:18 2024 daemon.err /usr/bin/apsd: nl_wifi_newlink_handle:135: Error: config_index_to_name fail

Mon Feb 12 11:04:18 2024 daemon.err /usr/bin/apsd: nl_wifi_newlink_handle:135: Error: config_index_to_name fail

Mon Feb 12 11:04:18 2024 daemon.err /usr/bin/apsd: nl_wifi_newlink_handle:135: Error: config_index_to_name fail

Mon Feb 12 11:04:18 2024 daemon.err /usr/bin/apsd: nl_wifi_newlink_handle:135: Error: config_index_to_name fail

Mon Feb 12 11:04:18 2024 user.notice dhcpv6: teardown, interface=wanv6 ifname=br-wan

Mon Feb 12 11:04:18 2024 user.notice dhcpv6: teardown, ip -6 route del ::/0 dev br-wan

Mon Feb 12 11:04:18 2024 daemon.notice netifd: wanv6 (14913): dhcp6_ctl_init 94 addr = ::1, port = 5546

Mon Feb 12 11:04:18 2024 daemon.notice netifd: wanv6 (14913): dhcp6_ctl_init 143 dhcp6_ctl_init succeed

Mon Feb 12 11:04:18 2024 daemon.notice netifd: wanv6 (14913): client6_init 461 client6_init succeed

Mon Feb 12 11:04:20 2024 daemon.notice netifd: Interface 'wanv6' is now down

Mon Feb 12 11:04:23 2024 daemon.notice netifd: Network device 'br-wan' link is up

Mon Feb 12 11:04:23 2024 daemon.notice netifd: Interface 'wan' has link connectivity

Mon Feb 12 11:04:23 2024 daemon.notice netifd: Interface 'wanv6' has link connectivity

Mon Feb 12 11:04:23 2024 daemon.notice netifd: Interface 'wanv6' is setting up now

Mon Feb 12 11:04:23 2024 daemon.notice conn-indicator: Connectivity changed: OFFLINE(0x1) -> ONLINE(0x0)

Mon Feb 12 11:04:23 2024 user.warn IMPROXY: WARNING[mcast_recv_igmp@753]: Don't exist this Downstream VIF

Mon Feb 12 11:04:23 2024 user.notice dhcpv6: start dial, iface=br-wan

Mon Feb 12 11:04:28 2024 daemon.notice netifd: Network device 'br-wan' link is down

Mon Feb 12 11:04:28 2024 daemon.notice netifd: Interface 'wan' has link connectivity loss

Mon Feb 12 11:04:28 2024 daemon.notice netifd: Interface 'wanv6' has link connectivity loss

Mon Feb 12 11:04:28 2024 daemon.notice conn-indicator: Connectivity changed: ONLINE(0x0) -> OFFLINE(0x1)

Mon Feb 12 11:04:28 2024 daemon.err /usr/bin/apsd: nl_wifi_newlink_handle:135: Error: config_index_to_name fail

Mon Feb 12 11:04:28 2024 daemon.err /usr/bin/apsd: nl_wifi_newlink_handle:135: Error: config_index_to_name fail