TP-Link M4R 1.5.5 firmware constantly crashing
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This thread has been locked for further replies. You can start a new thread to share your ideas or ask questions.
Hi TP-Link.
I have two Deco M4 at home, and since firmware 1.5 version the internet connection through the Deco network is very unstable, it's impossible e.g. to use a VPN, the streaming quality is really poor, and WhatsApp or FaceTime calls keep breaking up and even disconnecting.
I've seen several threads regarding the 100% CPU load issue, but without any solution to it, with excucess pointing to the web UI, trying to avoid the root cause.
Just enabling the Deco logs it's obvious that the issue is related to the DHCP service, and I can see constant SIGTERM signals received, causing the udhcpd daemon to die, see the logs and the status sreen-shot bellow. This constant error causes the CPU to be constantlly at 100%, causing the network to be totally unusable.
This is clearly a bug, so please try to escalate it and don't give the users lame excuses. All the users are waiting for a real fix for this bug that is going on for a long time.
Mon Oct 3 09:47:41 2022 user.err IMPROXY: ERROR[init_interface@185]: interface br-wan don't have ipv6 address
Mon Oct 3 09:47:41 2022 user.err IMPROXY: ERROR[init_interface@172]: SIOCGIFADDR filed br-wan
Mon Oct 3 09:47:41 2022 user.err IMPROXY: ERROR[init_interface@233]: Disable IGMP, there is not igmp upstream interface or igmp downstream interface
Mon Oct 3 09:47:41 2022 user.err IMPROXY: ERROR[init_interface@245]: Disable MLD, there is not mld upstream interface or mld downstream interface
Mon Oct 3 09:47:41 2022 user.emerg IMPROXY: FATAL[init_interface@251]: exiting.....
Mon Oct 3 09:47:41 2022 user.err IMPROXY: ERROR[main@620]: exiting.........
Mon Oct 3 09:47:42 2022 daemon.err udhcpd[14132]: 192.168.68.108 belongs to someone, reserving it for 3600 seconds
Mon Oct 3 09:47:42 2022 daemon.err udhcpd[14132]: Sending OFFER of 192.168.68.109
Mon Oct 3 09:47:43 2022 user.emerg syslog: tp217,505[14362]:
Mon Oct 3 09:47:43 2022 daemon.err conn-indicator: [send_query] Failed to send DNS query: Network is unreachable
Mon Oct 3 09:47:43 2022 daemon.err udhcpd[14132]: Sending ACK to 192.168.68.109
Mon Oct 3 09:47:43 2022 daemon.err udhcpd[14132]: clear ip c0a8446d
Mon Oct 3 09:47:44 2022 daemon.err udhcpd[14132]: Received SIGTERM
Mon Oct 3 09:47:44 2022 user.emerg syslog: tp217,504[14362]:
Mon Oct 3 09:47:47 2022 user.err IMPROXY: ERROR[init_interface@185]: interface br-wan don't have ipv6 address
Mon Oct 3 09:47:47 2022 user.err IMPROXY: ERROR[init_interface@245]: Disable MLD, there is not mld upstream interface or mld downstream interface
Mon Oct 3 09:47:47 2022 daemon.err udhcpd[14688]: udhcpd (v1.22.1) started
Mon Oct 3 09:47:47 2022 daemon.err udhcpd[14688]: start ip 0xc0a84464, end ip 0xc0a844fa, subnet:0xffffff00
Mon Oct 3 09:47:47 2022 daemon.err udhcpd[14688]: lease ip: 0xc0a84468
Mon Oct 3 09:47:47 2022 daemon.err udhcpd[14688]: lease ip: 0xc0a8446b
Mon Oct 3 09:47:47 2022 daemon.err udhcpd[14688]: lease ip: 0xc0a84469
Mon Oct 3 09:47:47 2022 daemon.err udhcpd[14688]: lease ip: 0xc0a8446a
Mon Oct 3 09:47:47 2022 daemon.err udhcpd[14688]: lease ip: 0xc0a8446d
Mon Oct 3 09:47:51 2022 daemon.err /usr/bin/apsd: nl_wifi_newlink_handle:135: Error: config_index_to_name fail
Mon Oct 3 09:47:51 2022 daemon.err /usr/bin/apsd: nl_wifi_newlink_handle:135: Error: config_index_to_name fail
Mon Oct 3 09:47:51 2022 daemon.err /usr/bin/apsd: nl_wifi_newlink_handle:135: Error: config_index_to_name fail
Mon Oct 3 09:47:51 2022 daemon.err /usr/bin/apsd: nl_wifi_newlink_handle:135: Error: config_index_to_name fail
Mon Oct 3 09:47:52 2022 user.emerg syslog: tp279,508[15057]:
Mon Oct 3 09:47:52 2022 daemon.err udhcpd[14688]: Received SIGTERM
Mon Oct 3 09:47:53 2022 user.err IMPROXY: ERROR[imp_group_print@409]:
interface br-lan:192.168.68.1
Mon Oct 3 09:47:53 2022 user.err IMPROXY: ERROR[imp_group_print@414]: group 239.255.255.253 exclude mode
Mon Oct 3 09:47:53 2022 user.err IMPROXY: ERROR[imp_group_print@416]: group time 260
Mon Oct 3 09:47:53 2022 user.err IMPROXY: ERROR[imp_group_print@417]: version: 3
Mon Oct 3 09:47:55 2022 daemon.err udhcpd[15318]: udhcpd (v1.22.1) started
Mon Oct 3 09:47:55 2022 daemon.err udhcpd[15318]: start ip 0xc0a84464, end ip 0xc0a844fa, subnet:0xffffff00
Mon Oct 3 09:47:55 2022 daemon.err udhcpd[15318]: lease ip: 0xc0a84468
Mon Oct 3 09:47:55 2022 daemon.err udhcpd[15318]: lease ip: 0xc0a8446b
Mon Oct 3 09:47:55 2022 daemon.err udhcpd[15318]: lease ip: 0xc0a84469
Mon Oct 3 09:47:55 2022 daemon.err udhcpd[15318]: lease ip: 0xc0a8446a
Mon Oct 3 09:47:55 2022 daemon.err udhcpd[15318]: lease ip: 0xc0a8446d
Mon Oct 3 09:47:56 2022 daemon.err conn-indicator: [send_query] Failed to send DNS query: Network is unreachable
Mon Oct 3 09:47:57 2022 user.emerg syslog: tp211,501[15120]:
Mon Oct 3 09:47:58 2022 user.emerg syslog: tp211,501[15120]:
Mon Oct 3 09:47:58 2022 daemon.err udhcpd[15318]: Received SIGTERM
Mon Oct 3 09:47:59 2022 daemon.err udhcpd[15752]: udhcpd (v1.22.1) started
Mon Oct 3 09:47:59 2022 daemon.err udhcpd[15752]: start ip 0xc0a84464, end ip 0xc0a844fa, subnet:0xffffff00
Mon Oct 3 09:47:59 2022 daemon.err udhcpd[15752]: lease ip: 0xc0a84468
Mon Oct 3 09:47:59 2022 daemon.err udhcpd[15752]: lease ip: 0xc0a8446b
Mon Oct 3 09:47:59 2022 daemon.err udhcpd[15752]: lease ip: 0xc0a84469
Mon Oct 3 09:47:59 2022 daemon.err udhcpd[15752]: lease ip: 0xc0a8446a
Mon Oct 3 09:47:59 2022 daemon.err udhcpd[15752]: lease ip: 0xc0a8446d
Mon Oct 3 09:48:03 2022 user.emerg syslog: tp211,21[15120]: FTP
Mon Oct 3 09:48:03 2022 user.emerg syslog: tp211,21[15120]: TFTP
Mon Oct 3 09:48:03 2022 user.emerg syslog: tp211,21[15120]: H323
Mon Oct 3 09:48:03 2022 user.emerg syslog: tp211,21[15120]: RTSP
Mon Oct 3 09:48:04 2022 user.emerg syslog: tp211,21[15120]: SIP
Mon Oct 3 09:48:04 2022 user.emerg syslog: tp211,21[15120]: PPTP
Mon Oct 3 09:48:04 2022 user.emerg syslog: tp211,21[15120]: L2TP
Mon Oct 3 09:48:04 2022 user.emerg syslog: tp211,21[15120]: IPSEC
Mon Oct 3 09:48:05 2022 daemon.err /usr/bin/apsd: nl_wifi_newlink_handle:135: Error: config_index_to_name fail
Mon Oct 3 09:48:05 2022 daemon.err /usr/bin/apsd: nl_wifi_newlink_handle:135: Error: config_index_to_name fail
Mon Oct 3 09:48:05 2022 daemon.err /usr/bin/apsd: nl_wifi_newlink_handle:135: Error: config_index_to_name fail
Mon Oct 3 09:48:05 2022 daemon.err /usr/bin/apsd: nl_wifi_newlink_handle:135: Error: config_index_to_name fail
Mon Oct 3 09:48:05 2022 daemon.err /usr/bin/apsd: nl_wifi_newlink_handle:135: Error: config_index_to_name fail
Mon Oct 3 09:48:06 2022 daemon.err udhcpd[15752]: Received SIGTERM
Mon Oct 3 09:48:08 2022 daemon.err udhcpd[16586]: udhcpd (v1.22.1) started
Mon Oct 3 09:48:08 2022 daemon.err udhcpd[16586]: start ip 0xc0a84464, end ip 0xc0a844fa, subnet:0xffffff00
Mon Oct 3 09:48:08 2022 daemon.err udhcpd[16586]: lease ip: 0xc0a84468
Mon Oct 3 09:48:08 2022 daemon.err udhcpd[16586]: lease ip: 0xc0a8446b
Mon Oct 3 09:48:08 2022 daemon.err udhcpd[16586]: lease ip: 0xc0a84469
Mon Oct 3 09:48:08 2022 daemon.err udhcpd[16586]: lease ip: 0xc0a8446a
Mon Oct 3 09:48:08 2022 daemon.err udhcpd[16586]: lease ip: 0xc0a8446d
Mon Oct 3 09:48:09 2022 user.emerg syslog: tp211,501[16361]:
Mon Oct 3 09:48:10 2022 user.emerg syslog: tp211,501[16361]:
Mon Oct 3 09:48:10 2022 daemon.err conn-indicator: [send_query] Failed to send DNS query: Network is unreachable
Mon Oct 3 09:48:13 2022 daemon.err udhcpd[16586]: Sending ACK to 192.168.68.109
Mon Oct 3 09:48:13 2022 daemon.err udhcpd[16586]: clear ip c0a8446d
Mon Oct 3 09:48:13 2022 daemon.err udhcpd[16586]: Received SIGTERM
Mon Oct 3 09:48:15 2022 daemon.err udhcpd[17151]: udhcpd (v1.22.1) started
Mon Oct 3 09:48:15 2022 daemon.err udhcpd[17151]: start ip 0xc0a84464, end ip 0xc0a844fa, subnet:0xffffff00
Mon Oct 3 09:48:15 2022 daemon.err udhcpd[17151]: lease ip: 0xc0a84468
Mon Oct 3 09:48:15 2022 daemon.err udhcpd[17151]: lease ip: 0xc0a8446b
Mon Oct 3 09:48:15 2022 daemon.err udhcpd[17151]: lease ip: 0xc0a84469
Mon Oct 3 09:48:15 2022 daemon.err udhcpd[17151]: lease ip: 0xc0a8446a
Mon Oct 3 09:48:15 2022 daemon.err udhcpd[17151]: lease ip: 0xc0a8446d
Mon Oct 3 09:48:18 2022 user.emerg syslog: tp211,501[17071]:
Mon Oct 3 09:48:20 2022 user.emerg syslog: tp211,501[17071]:
Mon Oct 3 09:48:21 2022 daemon.err /usr/bin/apsd: nl_wifi_newlink_handle:135: Error: config_index_to_name fail
Mon Oct 3 09:48:21 2022 daemon.err /usr/bin/apsd: nl_wifi_newlink_handle:135: Error: config_index_to_name fail
Mon Oct 3 09:48:21 2022 daemon.err /usr/bin/apsd: nl_wifi_newlink_handle:135: Error: config_index_to_name fail
Mon Oct 3 09:48:21 2022 daemon.err /usr/bin/apsd: nl_wifi_newlink_handle:135: Error: config_index_to_name fail
Mon Oct 3 09:48:21 2022 daemon.err /usr/bin/apsd: nl_wifi_newlink_handle:135: Error: config_index_to_name fail
Mon Oct 3 09:48:22 2022 user.err IMPROXY: ERROR[init_interface@185]: interface br-wan don't have ipv6 address
Mon Oct 3 09:48:22 2022 user.err IMPROXY: ERROR[init_interface@172]: SIOCGIFADDR filed br-wan
Mon Oct 3 09:48:22 2022 user.err IMPROXY: ERROR[init_interface@233]: Disable IGMP, there is not igmp upstream interface or igmp downstream interface
Mon Oct 3 09:48:22 2022 user.err IMPROXY: ERROR[init_interface@245]: Disable MLD, there is not mld upstream interface or mld downstream interface
Mon Oct 3 09:48:22 2022 user.emerg IMPROXY: FATAL[init_interface@251]: exiting.....
Mon Oct 3 09:48:22 2022 user.err IMPROXY: ERROR[main@620]: exiting.........
Mon Oct 3 09:48:23 2022 daemon.err udhcpd[17151]: Received SIGTERM
Mon Oct 3 09:48:24 2022 user.emerg syslog: tp217,505[17889]:
Mon Oct 3 09:48:25 2022 daemon.err conn-indicator: [send_query] Failed to send DNS query: Network is unreachable
Mon Oct 3 09:48:25 2022 user.emerg syslog: tp217,504[17889]:
Mon Oct 3 09:48:25 2022 daemon.err udhcpd[17993]: udhcpd (v1.22.1) started
Mon Oct 3 09:48:25 2022 daemon.err udhcpd[17993]: start ip 0xc0a84464, end ip 0xc0a844fa, subnet:0xffffff00
Mon Oct 3 09:48:25 2022 daemon.err udhcpd[17993]: lease ip: 0xc0a84468
Mon Oct 3 09:48:25 2022 daemon.err udhcpd[17993]: lease ip: 0xc0a8446b
Mon Oct 3 09:48:25 2022 daemon.err udhcpd[17993]: lease ip: 0xc0a84469
Mon Oct 3 09:48:25 2022 daemon.err udhcpd[17993]: lease ip: 0xc0a8446a
Mon Oct 3 09:48:25 2022 daemon.err udhcpd[17993]: lease ip: 0xc0a8446d
Mon Oct 3 09:48:27 2022 user.err IMPROXY: ERROR[init_interface@185]: interface br-wan don't have ipv6 address
Mon Oct 3 09:48:27 2022 user.err IMPROXY: ERROR[init_interface@172]: SIOCGIFADDR filed br-wan
Mon Oct 3 09:48:27 2022 user.err IMPROXY: ERROR[init_interface@233]: Disable IGMP, there is not igmp upstream interface or igmp downstream interface
Mon Oct 3 09:48:27 2022 user.err IMPROXY: ERROR[init_interface@245]: Disable MLD, there is not mld upstream interface or mld downstream interface
Mon Oct 3 09:48:27 2022 user.emerg IMPROXY: FATAL[init_interface@251]: exiting.....
Mon Oct 3 09:48:27 2022 user.err IMPROXY: ERROR[main@620]: exiting.........
Mon Oct 3 09:48:28 2022 daemon.err conn-indicator: [send_query] Failed to send DNS query: Network is unreachable
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I downgraded to 1.5.4 for some days ago, and it seems to have solved the problem for me. But I don't know if I miss any security updates, or something important by doing this.
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@Steiney Hi, how can i downgrade the firmware?
Thank you
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@Renato_DM I downloaded the firmware from this tp-links support page: https://www.tp-link.com/no/support/download/deco-m4/v1/#Firmware .Then i logged in to my router via my local ip address in a browser, then advanced- system- firmware update and uploaded the firmware file there. After a couple of minutes I had the old version again.:)
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Faced the same problem when setting up an Internet provider - Mikrotik - Deco M4R V2Technical support advised to downgrade to version 1.4.3 where disabled smart DHCP serverThis solution was proposed a year ago, and the issue is still unresolved. TP-LINK is a terrible attitude to its customers.
1. The on/off switch for smart DHCP server will be added on firmware 1.6.0 and you could wait for a while for the new firmware.2. Downgrade the firmware back to 1.4.3 and do not update the firmware before the release of official firmware 1.6.0.
How to downgrade the firmware:
- Run a firmware recovery on Deco M4: https://www.tp-link.com/en/support/faq/2958/
- Then upload the beta firmware 1.4.3 which added the on/off switch for smart DHCP server: https://static.tp-link.com/upload/beta/2021/202109/20210928/M4_V2_1.4.3_disable_DHCP_in_AP_mode.zip
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@Exios @Steiney Today I've phoned to Italian support and they sent me a provisional firmware to install with standard procedure:
https://static.tp-link.com/upload/beta/2022/202211/20221130/Deco_M4_V2_1.5.5_221124_backhaul.zip
I've installed it and now I'm monitoring the situation.
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@Renato_DM Installed - I will watch. Thanks!
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@Renato_DM The firmware is working, Deco has stopped littering the the local network and reconnecting devices. In the Mikrotik report log, the errors have finally disappeared. I already wanted to sell Deco and buy mesh Xiaomi AX3000.
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Helpful: 3
Views: 3683
Replies: 18
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