Model :

Hardware Version :

Firmware Version :

ISP :

I ordered my TL-WR841N Router and received it brand new just a few days ago. At my home we've noticed a very inconsistent connection. Any time the internet slows or disconnects, when I check the system log I see another batch of rapid DHCP requests:

Log snippet:

####################################################################
# TL-WR841N System Log
# Time = 2017-01-16 18:30:01 1370s
# H-Ver = WR841N v11 00000000 : S-Ver = 3.16.9 Build 150616 Rel.66493n
# L = 192.168.0.1 : M = 255.255.255.0
# W1 = DHCP : W = 72.204.54.80 : M = 255.255.248.0 : G = 72.204.48.1
####################################################################


Jan 16 18:07:15 OTHER INFO System started
Jan 16 18:07:22 DHCP INFO DHCPC Send DISCOVER with request ip 0 and unicast flag 0
Jan 16 18:07:22 DHCP NOTICE DHCP server started
Jan 16 18:07:22 SECURITY INFO PPTP Passthrough enabled
Jan 16 18:07:22 SECURITY INFO L2TP Passthrough enabled
Jan 16 18:07:22 SECURITY INFO IPSEC Passthrough enabled
Jan 16 18:07:22 DHCP INFO DHCPC Recv OFFER from server ac13797e with ip 48cc3650
Jan 16 18:07:22 DHCP INFO DHCPC Send REQUEST to server ac13797e with request ip 48cc3650
Jan 16 18:07:22 SECURITY INFO FTP ALG enabled
Jan 16 18:07:22 SECURITY INFO TFTP ALG enabled
Jan 16 18:07:22 SECURITY INFO H323 ALG enabled
Jan 16 18:07:22 SECURITY INFO RTSP ALG enabled
Jan 16 18:07:22 SECURITY INFO SIP ALG enabled
Jan 16 18:07:23 DHCP INFO DHCPC Recv ACK from server ac13797e with ip 48cc3650 lease time 86400
Jan 16 18:07:23 DHCP INFO DHCPC:GET ip:48cc3650 mask:fffff800 gateway:48cc3001 dns1:44691c0b dns2:44691d0b static route:0
Jan 16 18:07:23 DHCP NOTICE Dynamic IP(DHCP Client) obtained an IP successfully
Jan 16 18:07:38 IPv6 INFO DHCP6C: Actual network device is eth1, DUID type is 0.
Jan 16 18:07:38 IPv6 INFO wide-dhcpv6: get hardware ID on device eth1.
Jan 16 18:07:38 IPv6 INFO wide-dhcpv6: Get a hardware address on device eth1 successfully.
Jan 16 18:07:38 IPv6 INFO Generated a new DUID: 00:01:00:01:1c:37:4a:99:68:a3:c4:c5:ec:12
Jan 16 18:07:38 IPv6 INFO Fork a child process to communicate with httpd.
Jan 16 18:07:38 IPv6 INFO DHCP6C main loop running.
Jan 16 18:07:38 IPv6 NOTICE Run cmd dhcp6c -c /tmp/dhcp6c.conf -I eth1 -p /tmp/dhcp6c.pid eth1 OK.
Jan 16 18:07:39 IPv6 INFO DHCP6c is starting.
Jan 16 18:07:39 IPv6 INFO DHCP6C: Actual network device is eth1, DUID type is 0.
Jan 16 18:07:39 IPv6 NOTICE Run cmd dhcp6c -c /tmp/dhcp6c.conf -I eth1 -p /tmp/dhcp6c.pid eth1 error.
Jan 16 18:07:39 IPv6 INFO Start RADVD with prefix 64 succeedfully.
Jan 16 18:07:39 DHCP INFO DHCPC perform a DHCP renew
Jan 16 18:07:39 DHCP INFO DHCPC Send REQUEST to server ac13797e with request ip 48cc3650
Jan 16 18:07:39 OTHER INFO System Initialize Finished.
Jan 16 18:07:40 DHCP INFO DHCPC Recv ACK from server ac13797e with ip 48cc3650 lease time 86400
Jan 16 18:07:40 DHCP INFO DHCPC:GET ip:48cc3650 mask:fffff800 gateway:48cc3001 dns1:44691c0b dns2:44691d0b static route:0
Jan 16 18:07:40 DHCP NOTICE Dynamic IP(DHCP Client) obtained an IP successfully
Jan 16 18:07:40 IPv6 NOTICE Receive DHCP data, WanType = 2, status = 0, cmd = 1, ip = 2600:8804:9f02:100:35be:1374:95ec:1798, prefix = 2600:8804:8440:1e4::, prefixLen = 64
Jan 16 18:07:40 IPv6 NOTICE DHCPv6 Server return succeed status, cmd 1.
Jan 16 18:07:40 IPv6 NOTICE Open hybird mode.
Jan 16 18:07:40 IPv6 NOTICE Send router solicition OK, to get default gateway.
Jan 16 18:07:41 DHCP INFO DHCPS:Recv DISCOVER from E8:61:7E:BB:47:AF
Jan 16 18:07:42 DHCP INFO DHCPS:Send OFFER with ip 192.168.0.100
Jan 16 18:07:42 DHCP INFO DHCPS:Recv REQUEST from E8:61:7E:BB:47:AF
Jan 16 18:07:42 DHCP INFO DHCPS:Send ACK to 192.168.0.100
Jan 16 18:07:45 IPv6 NOTICE Send router solicition OK, to get default gateway.
Jan 16 18:07:46 IPv6 NOTICE DHCPv6 get gateway fe80::c664:13ff:fef9:c4d9 from ISP.
Jan 16 18:07:46 IPv6 NOTICE Dhcpc succeed: The new IP = 2600:8804:9f02:100:35be:1374:95ec:1798, prefix = 2600:8804:8440:1e4::, dns1 = 2001:578:3f::30, dns2 = 2001:578:3f:1::30, gateway = fe80::c664:13ff:fef9:c4d9.
Jan 16 18:07:46 IPv6 NOTICE Set IPv6 address 2600:8804:9f02:100:35be:1374:95ec:1798 to device eth1.
Jan 16 18:07:48 IPv6 NOTICE Not Close hybird mode.
Jan 16 18:07:48 IPv6 NOTICE DNS1 = 2001:578:3f::30, DNS2 = 2001:578:3f:1::30, gateway = fe80::c664:13ff:fef9:c4d9
Jan 16 18:07:48 IPv6 NOTICE DHCPv6 succeed, start LAN auto config, prefix = 2600:8804:8440:1e4::, len = 64^M
Jan 16 18:07:50 DHCP INFO DHCPS:Recv REQUEST from B0:79:94:A2:F4:14
Jan 16 18:07:51 DHCP INFO DHCPS:Send ACK to 192.168.0.101
Jan 16 18:07:53 IPv6 NOTICE runRadvdCmd 383 call startDhcp6sForOtherInfo
Jan 16 18:07:53 IPv6 NOTICE dnsConf is option domain-name-servers 2001:578:3f::30 2001:578:3f:1::30;
Jan 16 18:07:53 IPv6 INFO DHCP6S: network device is br0, DUID type 0.
Jan 16 18:07:53 IPv6 INFO wide-dhcpv6: get hardware ID on device br0.
Jan 16 18:07:53 IPv6 INFO wide-dhcpv6: Get a hardware address on device br0 successfully.
Jan 16 18:07:53 IPv6 INFO Generated a new DUID: 00:01:00:01:1c:37:4a:a8:a4:2b:b0:a2:e2:1a
Jan 16 18:07:54 IPv6 NOTICE runRadvdCmd 383 call startDhcp6sForOtherInfo
Jan 16 18:07:54 IPv6 NOTICE dnsConf is option domain-name-servers 2001:578:3f::30 2001:578:3f:1::30;
Jan 16 18:07:55 IPv6 INFO DHCP6S: network device is br0, DUID type 0.
Jan 16 18:07:55 IPv6 INFO Start RADVD with prefix 2600:8804:8440:1e4::/64 succeedfully.
Jan 16 18:08:26 DHCP INFO DHCPS:Recv REQUEST from D8:FC:93:45:E5:F7
Jan 16 18:08:26 DHCP INFO DHCPS:Send ACK to 192.168.0.103
Jan 16 18:08:48 DHCP INFO DHCPS:Recv REQUEST from D8:FC:93:45:E5:F7
Jan 16 18:08:48 DHCP INFO DHCPS:Send ACK to 192.168.0.103
Jan 16 18:08:57 DHCP INFO DHCPS:Recv REQUEST from D8:FC:93:45:E5:F7
Jan 16 18:08:57 DHCP INFO DHCPS:Send ACK to 192.168.0.103
Jan 16 18:09:10 DHCP INFO DHCPS:Recv REQUEST from D8:FC:93:45:E5:F7
Jan 16 18:09:10 DHCP INFO DHCPS:Send ACK to 192.168.0.103
Jan 16 18:09:14 DHCP INFO DHCPS:Recv REQUEST from D8:FC:93:45:E5:F7
Jan 16 18:09:14 DHCP INFO DHCPS:Send ACK to 192.168.0.103
Jan 16 18:09:24 DHCP INFO DHCPS:Recv REQUEST from D8:FC:93:45:E5:F7
Jan 16 18:09:24 DHCP INFO DHCPS:Send ACK to 192.168.0.103
Jan 16 18:11:18 DHCP INFO DHCPS:Recv DISCOVER from E8:61:7E:BB:47:AF
Jan 16 18:11:19 DHCP INFO DHCPS:Send OFFER with ip 192.168.0.100
Jan 16 18:11:19 DHCP INFO DHCPS:Recv REQUEST from E8:61:7E:BB:47:AF
Jan 16 18:11:19 DHCP INFO DHCPS:Send ACK to 192.168.0.100
Jan 16 18:15:00 DHCP INFO DHCPS:Recv REQUEST from D8:FC:93:45:E5:F7
Jan 16 18:15:00 DHCP INFO DHCPS:Send ACK to 192.168.0.103
Jan 16 18:15:04 DHCP INFO DHCPS:Recv REQUEST from D8:FC:93:45:E5:F7
Jan 16 18:15:04 DHCP INFO DHCPS:Send ACK to 192.168.0.103
Jan 16 18:15:12 DHCP INFO DHCPS:Recv REQUEST from D8:FC:93:45:E5:F7
Jan 16 18:15:12 DHCP INFO DHCPS:Send ACK to 192.168.0.103
Jan 16 18:15:20 DHCP INFO DHCPS:Recv REQUEST from D8:FC:93:45:E5:F7
Jan 16 18:15:20 DHCP INFO DHCPS:Send ACK to 192.168.0.103
Jan 16 18:15:24 DHCP INFO DHCPS:Recv REQUEST from D8:FC:93:45:E5:F7
Jan 16 18:15:24 DHCP INFO DHCPS:Send ACK to 192.168.0.103
Jan 16 18:15:32 DHCP INFO DHCPS:Recv REQUEST from D8:FC:93:45:E5:F7
Jan 16 18:15:32 DHCP INFO DHCPS:Send ACK to 192.168.0.103
Jan 16 18:15:37 DHCP INFO DHCPS:Recv REQUEST from D8:FC:93:45:E5:F7
Jan 16 18:15:37 DHCP INFO DHCPS:Send ACK to 192.168.0.103
Jan 16 18:15:42 DHCP INFO DHCPS:Recv REQUEST from D8:FC:93:45:E5:F7
Jan 16 18:15:42 DHCP INFO DHCPS:Send ACK to 192.168.0.103
Jan 16 18:19:34 DHCP INFO DHCPS:Recv REQUEST from D8:FC:93:45:E5:F7
Jan 16 18:19:34 DHCP INFO DHCPS:Send ACK to 192.168.0.103
Jan 16 18:19:38 DHCP INFO DHCPS:Recv REQUEST from D8:FC:93:45:E5:F7
Jan 16 18:19:38 DHCP INFO DHCPS:Send ACK to 192.168.0.103
Jan 16 18:28:12 DHCP INFO DHCPS:Recv REQUEST from D8:FC:93:45:E5:F7
Jan 16 18:28:12 DHCP INFO DHCPS:Send ACK to 192.168.0.103
Jan 16 18:29:16 DHCP INFO DHCPS:Recv REQUEST from D8:FC:93:45


Firmware is latest version.
Device you see being spammed with DHCPS requests is a static IP.
All other settings are factory settings. ie: Channel width = Auto, Channel - Auto
Please let me know what I can do.
Thanks!