I have AT&T Fiber (BGW320-505) with their gateway in IP Passthrough Mode. I have a Deco as my router and 3 more throughout the house. My setup was 1 ethernet connected from the gateway to the main Deco, and then another one that went to a wall port that activated ports throughout my house. Everything had been working fine for a year, but this morning I woke up and saw the main deco had a solid red light. After much troubleshooting (and reboots and factory resets) I figured out that it was the second ethernet cable being plugged into the wall that was causing the issue. As soon as I unplug that one the red light goes back to green and all is good. Any ideas on why that is suddently now causing an issue?? I have pasted the logs below from when I tried to plug in the wall cable and then unplugged to get it back online.

Wed Nov 19 00:18:04 2025 daemon.notice nrd[325]: ar_apinfo_collect[line 1138]: AP sync timer expires!
Wed Nov 19 00:18:13 2025 daemon.err client_mgmt: mac 9C-37-CB-67-CF-44 had uploaded
Wed Nov 19 00:18:30 2025 user.notice root: [camera_security_sched] has_config: no config
Wed Nov 19 00:18:44 2025 user.notice IMPROXY: INFO[imp_input_report_mldv2@461]: MLD_MODE_IS_EXCLUDE
Wed Nov 19 00:18:44 2025 user.notice IMPROXY: INFO[imp_verify_multicast_addr@258]: Group address 239.255.255.250 belongs to IPv4 Local Scope.
Wed Nov 19 00:18:44 2025 user.notice IMPROXY: INFO[imp_verify_multicast_addr@245]: Group address 224.0.0.251 is Local Network Control Block
Wed Nov 19 00:18:45 2025 user.notice IMPROXY: INFO[imp_input_report_mldv2@461]: MLD_MODE_IS_EXCLUDE
Wed Nov 19 00:18:45 2025 user.notice IMPROXY: INFO[imp_verify_multicast_addr@258]: Group address 239.255.255.250 belongs to IPv4 Local Scope.
Wed Nov 19 00:18:45 2025 user.notice IMPROXY: INFO[imp_verify_multicast_addr@245]: Group address 224.0.0.251 is Local Network Control Block
Wed Nov 19 00:18:45 2025 user.notice IMPROXY: INFO[imp_verify_multicast_addr@245]: Group address 224.0.0.250 is Local Network Control Block
Wed Nov 19 00:18:45 2025 user.notice IMPROXY: INFO[imp_verify_multicast_addr@258]: Group address 239.255.255.251 belongs to IPv4 Local Scope.
Wed Nov 19 00:18:45 2025 user.notice IMPROXY: INFO[imp_verify_multicast_addr@258]: Group address 239.255.3.22 belongs to IPv4 Local Scope.
Wed Nov 19 00:18:45 2025 user.notice IMPROXY: INFO[imp_verify_multicast_addr@245]: Group address 224.0.0.252 is Local Network Control Block
Wed Nov 19 00:18:46 2025 user.notice IMPROXY: INFO[imp_verify_multicast_addr@245]: Group address 224.0.0.251 is Local Network Control Block
Wed Nov 19 00:18:46 2025 user.notice IMPROXY: INFO[imp_verify_multicast_addr@258]: Group address 239.255.255.250 belongs to IPv4 Local Scope.
Wed Nov 19 00:18:47 2025 user.notice IMPROXY: INFO[imp_verify_multicast_addr@258]: Group address 239.255.255.250 belongs to IPv4 Local Scope.
Wed Nov 19 00:18:47 2025 user.notice IMPROXY: INFO[imp_verify_multicast_addr@258]: Group address 239.255.255.250 belongs to IPv4 Local Scope.
Wed Nov 19 00:18:48 2025 user.notice IMPROXY: INFO[imp_verify_multicast_addr@258]: Group address 239.255.255.250 belongs to IPv4 Local Scope.
Wed Nov 19 00:18:48 2025 user.notice IMPROXY: INFO[imp_verify_multicast_addr@245]: Group address 224.0.0.251 is Local Network Control Block
Wed Nov 19 00:18:48 2025 user.notice IMPROXY: INFO[imp_verify_multicast_addr@245]: Group address 224.0.0.251 is Local Network Control Block
Wed Nov 19 00:18:48 2025 user.notice IMPROXY: INFO[imp_verify_multicast_addr@258]: Group address 239.255.255.250 belongs to IPv4 Local Scope.
Wed Nov 19 00:18:48 2025 user.notice IMPROXY: INFO[imp_verify_multicast_addr@258]: Group address 239.255.255.251 belongs to IPv4 Local Scope.
Wed Nov 19 00:18:48 2025 user.notice IMPROXY: INFO[imp_verify_multicast_addr@245]: Group address 224.0.0.250 is Local Network Control Block
Wed Nov 19 00:18:49 2025 user.notice IMPROXY: INFO[imp_verify_multicast_addr@258]: Group address 239.255.255.250 belongs to IPv4 Local Scope.
Wed Nov 19 00:18:49 2025 user.notice IMPROXY: INFO[imp_verify_multicast_addr@245]: Group address 224.0.0.251 is Local Network Control Block
Wed Nov 19 00:18:49 2025 user.notice IMPROXY: INFO[imp_verify_multicast_addr@245]: Group address 224.0.0.250 is Local Network Control Block
Wed Nov 19 00:18:49 2025 user.notice IMPROXY: INFO[imp_verify_multicast_addr@258]: Group address 239.255.255.251 belongs to IPv4 Local Scope.
Wed Nov 19 00:18:49 2025 user.notice IMPROXY: INFO[imp_verify_multicast_addr@258]: Group address 239.255.3.22 belongs to IPv4 Local Scope.
Wed Nov 19 00:18:49 2025 user.notice IMPROXY: INFO[imp_verify_multicast_addr@245]: Group address 224.0.0.252 is Local Network Control Block
Wed Nov 19 00:18:50 2025 user.notice IMPROXY: INFO[imp_verify_multicast_addr@245]: Group address 224.0.0.251 is Local Network Control Block
Wed Nov 19 00:18:52 2025 user.notice IMPROXY: INFO[imp_verify_multicast_addr@258]: Group address 239.255.255.250 belongs to IPv4 Local Scope.
Wed Nov 19 00:19:06 2025 daemon.err client_mgmt: client(A6-AF-11-D9-0D-41) not found in arp table disconnect_counter=0
Wed Nov 19 00:19:06 2025 daemon.err client_mgmt: client(80-5B-65-D3-FA-F0) disconnected
Wed Nov 19 00:19:13 2025 user.notice IMPROXY: INFO[imp_input_report_mldv2@461]: MLD_MODE_IS_EXCLUDE
Wed Nov 19 00:19:14 2025 user.notice IMPROXY: INFO[imp_input_report_mldv2@461]: MLD_MODE_IS_EXCLUDE
Wed Nov 19 00:19:24 2025 daemon.err client_mgmt: client(A6-AF-11-D9-0D-41) not found in arp table disconnect_counter=1
Wed Nov 19 00:19:24 2025 daemon.err client_mgmt: client(9C-37-CB-67-CF-44) not found in arp table disconnect_counter=0
Wed Nov 19 00:19:32 2025 daemon.notice conn-indicator: Connectivity changed: ONLINE(0x0) -> OFFLINE(0x1)
Wed Nov 19 00:19:32 2025 daemon.err conn-indicator: 1th attr(data) not found
Wed Nov 19 00:19:32 2025 daemon.err conn-indicator: Invalid response
Wed Nov 19 00:19:32 2025 daemon.err conn-indicator: 1th attr(data) not found
Wed Nov 19 00:19:32 2025 daemon.err conn-indicator: Invalid response
Wed Nov 19 00:19:33 2025 authpriv.notice dropbear[3420]: Pubkey auth succeeded for 'root' with key sha1!! 73:a0:3e:bc:d4:2d:42:d4:34:24:30:5b:65:eb:60:b0:37:49:b9:7d from 192.168.71.250:38642
Wed Nov 19 00:19:33 2025 authpriv.notice dropbear[3419]: Pubkey auth succeeded for 'root' with key sha1!! 73:a0:3e:bc:d4:2d:42:d4:34:24:30:5b:65:eb:60:b0:37:49:b9:7d from 192.168.71.250:38640
Wed Nov 19 00:19:37 2025 user.warn IMPROXY: WARNING[mcast_recv_igmp@753]: Don't exist this Downstream VIF
Wed Nov 19 00:19:38 2025 daemon.notice hostapd: wpa_driver_nl80211_set_key: ifindex=43 (ath1) alg=0 addr=0x55b19efeb0 key_idx=0 set_tx=1 seq_len=0 key_len=0 key_flag=0x20
Wed Nov 19 00:19:38 2025 daemon.notice hostapd: wpa_driver_nl80211_set_key: ifindex=43 (ath1) alg=0 addr=0x55b19efeb0 key_idx=0 set_tx=1 seq_len=0 key_len=0 key_flag=0x20
Wed Nov 19 00:19:38 2025 daemon.notice hostapd: wpa_driver_nl80211_set_key: ifindex=43 (ath1) alg=0 addr=0x55b19efeb0 key_idx=0 set_tx=1 seq_len=0 key_len=0 key_flag=0x20
Wed Nov 19 00:19:38 2025 daemon.notice hostapd: wpa_driver_nl80211_set_key: ifindex=43 (ath1) alg=3 addr=0x55b19efeb0 key_idx=0 set_tx=1 seq_len=0 key_len=16 key_flag=0x2c
Wed Nov 19 00:19:38 2025 daemon.notice hostapd: ath1: AP-STA-CONNECTED b6:db:da:1e:77:5c
Wed Nov 19 00:19:38 2025 daemon.notice hostapd: ath1: ubus call access_client access '{"mac":"b6-db-da-1e-77-5c","ifname":"ath1","action":"associate"}' &
Wed Nov 19 00:19:38 2025 daemon.notice hostapd: ath1: ubus call client_mgmt access '{"mac":"B6-DB-DA-1E-77-5C","ifname":"ath1","action":"associate"}' &
Wed Nov 19 00:19:38 2025 daemon.notice nrd[325]: wlanifBSteerEventsHandleNodeAssociatedInd: Node B6:DB:DA:1E:77:5C associated on APId 255 ChanId 48  ESSId 0  , Capabilities:    , Max bandwidth: 2, Num of spatial streams: 2, PHY mode: 19, Max MCS: 9. Max TX power: 22
Wed Nov 19 00:19:38 2025 daemon.err client_mgmt: wireless client associate or disassociate.
Wed Nov 19 00:19:38 2025 daemon.err client_mgmt: client_mac:B6-DB-DA-1E-77-5C, client_ifname:ath1, client_action:associate
Wed Nov 19 00:19:38 2025 daemon.err client_mgmt: client(B6-DB-DA-1E-77-5C) assocaite by if(ath1).
Wed Nov 19 00:19:38 2025 daemon.err udhcpd[1428]: Received DISCOVER
Wed Nov 19 00:19:38 2025 daemon.err udhcpd[1428]: find_free_or_expired_nip
Wed Nov 19 00:19:38 2025 daemon.err udhcpd[1428]: find a new ip: 192.168.68.88, ready to arp check
Wed Nov 19 00:19:38 2025 daemon.err udhcpd[1428]: send arp packet:192.168.68.88
Wed Nov 19 00:19:38 2025 daemon.err udhcpd[1428]: checked a timeout node!
Wed Nov 19 00:19:38 2025 daemon.err udhcpd[1428]: Sending OFFER of 192.168.68.88
Wed Nov 19 00:19:39 2025 daemon.err udhcpd[1428]: Sending ACK to 192.168.68.88
Wed Nov 19 00:19:39 2025 daemon.err udhcpd[1428]: clear ip 5844a8c0
Wed Nov 19 00:19:40 2025 daemon.err client_mgmt: client(9C-37-CB-67-CF-44) not found in arp table disconnect_counter=1
Wed Nov 19 00:19:41 2025 user.notice IMPROXY: INFO[imp_verify_multicast_addr@245]: Group address 224.0.0.251 is Local Network Control Block
Wed Nov 19 00:19:41 2025 user.notice IMPROXY: INFO[imp_verify_multicast_addr@245]: Group address 224.0.0.251 is Local Network Control Block
Wed Nov 19 00:19:43 2025 user.notice IMPROXY: INFO[imp_verify_multicast_addr@245]: Group address 224.0.0.251 is Local Network Control Block
Wed Nov 19 00:19:43 2025 daemon.err client_mgmt: client(9C-37-CB-67-CF-44) not found in arp table disconnect_counter=2
Wed Nov 19 00:19:47 2025 daemon.notice conn-indicator: Connectivity changed: OFFLINE(0x1) -> ONLINE(0x0)
Wed Nov 19 00:19:47 2025 daemon.err conn-indicator: 1th attr(data) not found
Wed Nov 19 00:19:47 2025 daemon.err conn-indicator: Invalid response
Wed Nov 19 00:19:47 2025 daemon.err conn-indicator: 1th attr(data) not found
Wed Nov 19 00:19:47 2025 daemon.err conn-indicator: Invalid response
Wed Nov 19 00:19:48 2025 authpriv.notice dropbear[3762]: Pubkey auth succeeded for 'root' with key sha1!! 73:a0:3e:bc:d4:2d:42:d4:34:24:30:5b:65:eb:60:b0:37:49:b9:7d from 192.168.71.250:38649
Wed Nov 19 00:19:48 2025 authpriv.notice dropbear[3765]: Pubkey auth succeeded for 'root' with key sha1!! 73:a0:3e:bc:d4:2d:42:d4:34:24:30:5b:65:eb:60:b0:37:49:b9:7d from 192.168.71.250:38648
Wed Nov 19 00:20:00 2025 daemon.notice hostapd: wpa_driver_nl80211_set_key: ifindex=43 (ath1) alg=0 addr=0x55b19f0350 key_idx=0 set_tx=1 seq_len=0 key_len=0 key_flag=0x20
Wed Nov 19 00:20:00 2025 daemon.notice hostapd: wpa_driver_nl80211_set_key: ifindex=43 (ath1) alg=0 addr=0x55b19f0350 key_idx=0 set_tx=1 seq_len=0 key_len=0 key_flag=0x20
Wed Nov 19 00:20:00 2025 daemon.notice hostapd: ath0: Prune association for 84:b8:b8:50:7f:fb
Wed Nov 19 00:20:00 2025 daemon.notice hostapd: ath0: AP-STA-DISCONNECTED 84:b8:b8:50:7f:fb
Wed Nov 19 00:20:00 2025 daemon.notice hostapd: ath0: ubus call client_mgmt access '{"mac":"84-B8-B8-50-7F-FB","ifname":"ath0","action":"disassociate"}' &
Wed Nov 19 00:20:00 2025 daemon.notice hostapd: wpa_driver_nl80211_set_key: ifindex=43 (ath1) alg=0 addr=0x55b19f0350 key_idx=0 set_tx=1 seq_len=0 key_len=0 key_flag=0x20
Wed Nov 19 00:20:00 2025 daemon.notice hostapd: wpa_driver_nl80211_set_key: ifindex=43 (ath1) alg=0 addr=0x55b19f0350 key_idx=0 set_tx=1 seq_len=0 key_len=0 key_flag=0x20
Wed Nov 19 00:20:00 2025 daemon.notice hostapd: wpa_driver_nl80211_set_key: ifindex=43 (ath1) alg=0 addr=0x55b19f0350 key_idx=0 set_tx=1 seq_len=0 key_len=0 key_flag=0x20
Wed Nov 19 00:20:00 2025 daemon.err hostapd: hostapd_notif_disassoc num_sta 6
Wed Nov 19 00:20:00 2025 daemon.notice nrd[325]: wlanifLinkEventsCmnGenerateDisassocEvent: Client 84:B8:B8:50:7F:FB disassociated on APId 255 ChanId 48  ESSId 0  
Wed Nov 19 00:20:01 2025 daemon.err /usr/bin/apsd: apsd_check_eth_has_neigh:1766: Error: can't find ifname[ath1] in eth_ifname
Wed Nov 19 00:20:02 2025 daemon.err client_mgmt: wireless client associate or disassociate.
Wed Nov 19 00:20:02 2025 daemon.err client_mgmt: client_mac:84-B8-B8-50-7F-FB, client_ifname:ath0, client_action:disassociate
Wed Nov 19 00:20:02 2025 daemon.err client_mgmt: client(84-B8-B8-50-7F-FB) disassociate by if(ath0).
Wed Nov 19 00:20:05 2025 daemon.err hostapd: hostapd_notif_disassoc num_sta 12
Wed Nov 19 00:20:05 2025 daemon.notice nrd[325]: wlanifLinkEventsCmnGenerateDisassocEvent: Client 84:B8:B8:50:7F:FB disassociated on APId 255 ChanId 7   ESSId 0  
Wed Nov 19 00:20:05 2025 daemon.notice nrd[325]: stadbUpdateAssoc: Station 84:B8:B8:50:7F:FB roams itself
Wed Nov 19 00:20:05 2025 daemon.notice nrd[325]: stadbEntry_updateARBtmThreshold: update threshold of client 84:B8:B8:50:7F:FB for reason 2
Wed Nov 19 00:20:05 2025 daemon.err nrd[325]: ar_config_set_thres[line 28]: Null thres!
Wed Nov 19 00:20:07 2025 daemon.notice nrd[325]: wlanifLinkEventsCmnGenerateDisassocEvent: Client B6:DB:DA:1E:77:5C disassociated on APId 255 ChanId 48  ESSId 0  
Wed Nov 19 00:20:07 2025 daemon.notice hostapd: ath1: AP-STA-DISCONNECTED b6:db:da:1e:77:5c
Wed Nov 19 00:20:07 2025 daemon.notice hostapd: ath1: ubus call client_mgmt access '{"mac":"B6-DB-DA-1E-77-5C","ifname":"ath1","action":"disassociate"}' &
Wed Nov 19 00:20:07 2025 daemon.notice hostapd: wpa_driver_nl80211_set_key: ifindex=43 (ath1) alg=0 addr=0x55b19efeb0 key_idx=0 set_tx=1 seq_len=0 key_len=0 key_flag=0x20
Wed Nov 19 00:20:07 2025 daemon.notice hostapd: wpa_driver_nl80211_set_key: ifindex=43 (ath1) alg=0 addr=0x55b19efeb0 key_idx=0 set_tx=1 seq_len=0 key_len=0 key_flag=0x20
Wed Nov 19 00:20:07 2025 daemon.err hostapd: hostapd_notif_disassoc num_sta 5
Wed Nov 19 00:20:07 2025 daemon.notice hostapd: Station b6:db:da:1e:77:5c trying to disassociate, but it is not associated
Wed Nov 19 00:20:07 2025 daemon.err client_mgmt: wireless client associate or disassociate.
Wed Nov 19 00:20:07 2025 daemon.err client_mgmt: client_mac:B6-DB-DA-1E-77-5C, client_ifname:ath1, client_action:disassociate
Wed Nov 19 00:20:07 2025 daemon.err client_mgmt: client(B6-DB-DA-1E-77-5C) disassociate by if(ath1).
Wed Nov 19 00:20:08 2025 daemon.notice nrd[325]: ar_apinfo_collect[line 1138]: AP sync timer expires!