[FS#3907] TL-WDR4310 v1 random reboots

[OpenWrt Bugs]

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A new Flyspray task has been opened.  Details are below. 

User who did this - qingui wu (bright357) 

Attached to Project - OpenWrt/LEDE Project
Summary - TL-WDR4310 v1 random reboots
Task Type - Bug Report
Category - Base system
Status - Unconfirmed
Assigned To - 
Operating System - All
Severity - Low
Priority - Very Low
Reported Version - All
Due in Version - Undecided
Due Date - Undecided
Details - Device Model	TP-Link TL-WDR4310 v1
Firmware Version	OpenWrt SNAPSHOT r17053-76cc8a036c / LuCI Master git-21.163.60157-1bcb125（The same problem exists in other versions,Firmware Version 15.5/18.06/19.0.7/SNAPSHOT）
Kernel Version	5.4.128

1.The second router (TL-WDR4310) is wirelessly set to client mode to connect to the first router.

2. By observing the Netlink Bandwidth Monitor, when the number of concurrent connections of the second route (TL-WDR4310) connected to the device reaches more than 400K, the second route may restart randomly (observe data before failure, such as upload The total traffic is about 20GB, and the total download traffic is about 20GB). 
When the upload speed is greater than 1MB and for a long time, the higher the frequency of failures, and the download speed is greater than 1MB and for a long time, it seems that there is no problem.

3.system.log

Mon Jun 28 14:44:25 2021 daemon.info dnsmasq[2775]: reading /tmp/resolv.conf.d/resolv.conf.auto
Mon Jun 28 14:44:25 2021 daemon.info dnsmasq[2775]: using only locally-known addresses for domain test
Mon Jun 28 14:44:25 2021 daemon.info dnsmasq[2775]: using only locally-known addresses for domain onion
Mon Jun 28 14:44:25 2021 daemon.info dnsmasq[2775]: using only locally-known addresses for domain localhost
Mon Jun 28 14:44:25 2021 daemon.info dnsmasq[2775]: using only locally-known addresses for domain local
Mon Jun 28 14:44:25 2021 daemon.info dnsmasq[2775]: using only locally-known addresses for domain invalid
Mon Jun 28 14:44:25 2021 daemon.info dnsmasq[2775]: using only locally-known addresses for domain bind
Mon Jun 28 14:44:25 2021 daemon.info dnsmasq[2775]: using only locally-known addresses for domain lan
Mon Jun 28 14:44:25 2021 daemon.info dnsmasq[2775]: using nameserver 192.168.3.1#53
Mon Jun 28 14:44:26 2021 daemon.info procd: - init complete -
Mon Jun 28 14:44:26 2021 user.notice firewall: Reloading firewall due to ifup of wlan1 (wlan1)
Mon Jun 28 14:44:27 2021 daemon.err odhcp6c[2064]: Failed to send SOLICIT message to ff02::1:2 (Operation not permitted)
------------------- rebootting ----------------------
Tue Jun 29 11:18:57 2021 user.notice nlbwmon: Reloading nlbwmon due to ifup of wlan1 (wlan1)
Tue Jun 29 11:18:59 2021 daemon.notice miniupnpd[2979]: shutting down MiniUPnPd
Tue Jun 29 11:18:59 2021 daemon.err nmbd[3276]: [2021/06/29 11:18:59.898309,  0] ../../lib/util/become_daemon.c:136(daemon_ready)
Tue Jun 29 11:18:59 2021 daemon.err nmbd[3276]:   daemon_ready: daemon 'nmbd' finished starting up and ready to serve connections
Tue Jun 29 11:19:00 2021 user.info adblock-4.1.3[3739]: backup directory '/tmp/adblock-Backup' created
Tue Jun 29 11:19:00 2021 user.info adblock-4.1.3[3739]: adblock instance started ::: action: start, priority: 0, pid: 3739
Tue Jun 29 11:19:00 2021 daemon.notice miniupnpd[3845]: HTTP listening on port 5000
Tue Jun 29 11:19:00 2021 daemon.notice miniupnpd[3845]: HTTP IPv6 address given to control points : [fd02:1653:346d::1]
Tue Jun 29 11:19:00 2021 daemon.notice miniupnpd[3845]: Listening for NAT-PMP/PCP traffic on port 5351

PS:CPU load average and memory are normal.

More information can be found at the following URL:
https://bugs.openwrt.org/index.php?do=details&task_id=3907

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