Tp-link 841n loses connection

Tp-link 841n loses connection
Tp-link 841n loses connection
2017-11-13 18:35:10
Model :

Hardware Version :

Firmware Version :

ISP :

Hi all.
I have Tp-link 841n
WR841N v8 00000000
3.14.20 Build 140228 Rel.41803n

Maybe once or twice along 24h - 841n loses connection

Router gets dynamic ip from provider and lease 3600 second.

When 841 works normaly i see in logs:


Nov 12 21:52:27 DHCP INFO DHCPC Send REQUEST to server ac102801 with request ip ac10283b
Nov 12 21:52:28 DHCP INFO DHCPC Recv ACK from server ac102801 with ip ac10283b lease time 3600
Nov 12 21:52:28 DHCP INFO DHCPC:GET ip:ac10283b mask:ffffff00 gateway:ac102801 dns1:8080808 dns2:8080404 static route:0
Nov 12 21:52:28 DHCP NOTICE Dynamic IP(DHCP Client) obtained an IP successfully
Nov 12 22:22:27 DHCP INFO DHCPC Send REQUEST to server ac102801 with request ip ac10283b
Nov 12 22:22:28 DHCP INFO DHCPC Recv ACK from server ac102801 with ip ac10283b lease time 3600
Nov 12 22:22:28 DHCP INFO DHCPC:GET ip:ac10283b mask:ffffff00 gateway:ac102801 dns1:8080808 dns2:8080404 static route:0
Nov 12 22:22:28 DHCP NOTICE Dynamic IP(DHCP Client) obtained an IP successfully
Nov 12 22:52:28 DHCP INFO DHCPC Send REQUEST to server ac102801 with request ip ac10283b
Nov 12 22:52:29 DHCP INFO DHCPC Recv ACK from server ac102801 with ip ac10283b lease time 3600
Nov 12 22:52:29 DHCP INFO DHCPC:GET ip:ac10283b mask:ffffff00 gateway:ac102801 dns1:8080808 dns2:8080404 static route:0
Nov 12 22:52:29 DHCP NOTICE Dynamic IP(DHCP Client) obtained an IP successfully
Nov 12 23:22:28 DHCP INFO DHCPC Send REQUEST to server ac102801 with request ip ac10283b
Nov 12 23:22:29 DHCP INFO DHCPC Recv ACK from server ac102801 with ip ac10283b lease time 3600
Nov 12 23:22:29 DHCP INFO DHCPC:GET ip:ac10283b mask:ffffff00 gateway:ac102801 dns1:8080808 dns2:8080404 static route:0
Nov 12 23:22:29 DHCP NOTICE Dynamic IP(DHCP Client) obtained an IP successfully
Nov 12 23:52:28 DHCP INFO DHCPC Send REQUEST to server ac102801 with request ip ac10283b
Nov 12 23:52:29 DHCP INFO DHCPC Recv ACK from server ac102801 with ip ac10283b lease time 3600
Nov 12 23:52:29 DHCP INFO DHCPC:GET ip:ac10283b mask:ffffff00 gateway:ac102801 dns1:8080808 dns2:8080404 static route:0
Nov 12 23:52:29 DHCP NOTICE Dynamic IP(DHCP Client) obtained an IP successfully


Every 30 minutes 841n sends DHCP REQUEST for renew lease and recives ACK from dhcp server. It`s normally


But somtimes 841n sends 'release message' This message i see in log maybe once or twice on a day.


Nov 12 18:38:21 DHCP INFO DHCPC Recv ACK from server ac102801 with ip ac10283b lease time 3600
Nov 12 18:38:21 DHCP INFO DHCPC:GET ip:ac10283b mask:ffffff00 gateway:ac102801 dns1:8080808 dns2:8080404 static route:0
Nov 12 18:38:21 DHCP NOTICE Dynamic IP(DHCP Client) obtained an IP successfully
Nov 12 19:08:20 DHCP INFO DHCPC Send REQUEST to server ac102801 with request ip ac10283b
Nov 12 19:08:21 DHCP INFO DHCPC Recv ACK from server ac102801 with ip ac10283b lease time 3600
Nov 12 19:08:21 DHCP INFO DHCPC:GET ip:ac10283b mask:ffffff00 gateway:ac102801 dns1:8080808 dns2:8080404 static route:0
Nov 12 19:08:21 DHCP NOTICE Dynamic IP(DHCP Client) obtained an IP successfully
Nov 12 19:38:20 DHCP INFO DHCPC Send REQUEST to server ac102801 with request ip ac10283b
Nov 12 19:38:21 DHCP INFO DHCPC Recv ACK from server ac102801 with ip ac10283b lease time 3600
Nov 12 19:38:21 DHCP INFO DHCPC:GET ip:ac10283b mask:ffffff00 gateway:ac102801 dns1:8080808 dns2:8080404 static route:0
Nov 12 19:38:21 DHCP NOTICE Dynamic IP(DHCP Client) obtained an IP successfully
Nov 12 19:49:48 DHCP INFO DHCPC Unicasting a release of 172.16.40.59 to 172.16.40.1
Nov 12 19:49:48 DHCP INFO DHCPC Entering released state
Nov 12 19:49:50 DHCP INFO DHCPC perform a DHCP renew
Nov 12 19:49:50 DHCP INFO DHCPC Send DISCOVER with request ip AC10283B and unicast flag 0
Nov 12 19:49:52 DHCP INFO DHCPC Send DISCOVER with request ip AC10283B and unicast flag 0
Nov 12 19:49:54 DHCP INFO DHCPC Send DISCOVER with request ip AC10283B and unicast flag 0
Nov 12 19:49:58 DHCP INFO DHCPC Send DISCOVER with request ip AC10283B and unicast flag 1
Nov 12 19:50:00 DHCP INFO DHCPC Send DISCOVER with request ip AC10283B and unicast flag 1
Nov 12 19:50:02 DHCP INFO DHCPC DHCP Service unavailable, recv no OFFER
Nov 12 19:50:12 DHCP INFO DHCPC Send DISCOVER with request ip AC10283B and unicast flag 0
Nov 12 19:50:14 DHCP INFO DHCPC Send DISCOVER with request ip AC10283B and unicast flag 0
Nov 12 19:50:16 DHCP INFO DHCPC Send DISCOVER with request ip AC10283B and unicast flag 0
Nov 12 19:50:20 DHCP INFO DHCPC Send DISCOVER with request ip AC10283B and unicast flag 1
Nov 12 19:50:22 DHCP INFO DHCPC Send DISCOVER with request ip AC10283B and unicast flag 1
Nov 12 19:50:24 DHCP INFO DHCPC DHCP Service unavailable, recv no OFFER
Nov 12 19:51:04 DHCP INFO DHCPC Send DISCOVER with request ip AC10283B and unicast flag 0
Nov 12 19:51:06 DHCP INFO DHCPC Send DISCOVER with request ip AC10283B and unicast flag 0
Nov 12 19:51:08 DHCP INFO DHCPC Send DISCOVER with request ip AC10283B and unicast flag 0
Nov 12 19:51:12 DHCP INFO DHCPC Send DISCOVER with request ip AC10283B and unicast flag 1
Nov 12 19:51:14 DHCP INFO DHCPC Send DISCOVER with request ip AC10283B and unicast flag 1
Nov 12 19:51:16 DHCP INFO DHCPC DHCP Service unavailable, recv no OFFER
Nov 12 19:52:26 DHCP INFO DHCPC Send DISCOVER with request ip AC10283B and unicast flag 0
Nov 12 19:52:26 DHCP INFO DHCPC Recv OFFER from server ac102801 with ip ac10283b
Nov 12 19:52:26 DHCP INFO DHCPC Send REQUEST to server ac102801 with request ip ac10283b
Nov 12 19:52:27 DHCP INFO DHCPC Recv ACK from server ac102801 with ip ac10283b lease time 3600
Nov 12 19:52:27 DHCP INFO DHCPC:GET ip:ac10283b mask:ffffff00 gateway:ac102801 dns1:8080808 dns2:8080404 static route:0
Nov 12 19:52:27 DHCP NOTICE Dynamic IP(DHCP Client) obtained an IP successfully


I have a question. For what did 841 relese ip address ?

IN 19:38 841n renews lease:

Nov 12 19:38:21 DHCP NOTICE Dynamic IP(DHCP Client) obtained an IP successfully


after 10 minutes it inits relese :

Nov 12 19:49:48 DHCP INFO DHCPC Unicasting a release of 172.16.40.59 to 172.16.40.1
Nov 12 19:49:48 DHCP INFO DHCPC Entering released state
Nov 12 19:49:50 DHCP INFO DHCPC perform a DHCP renew



Thank you! .


































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#1
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4 Replies
Re:Tp-link 841n loses connection
2017-11-14 18:37:16
Seems your router doesn't have latest firmware, you can try update it and see if you still have the issue.
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#2
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Re:Tp-link 841n loses connection
2017-11-15 20:26:21
Thank you for an answer.
I updated router to 3.16.9 Build 170210 Rel.42078n
At the moment I'm testing the rotuter/
Thank you
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#3
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Re:Tp-link 841n loses connection
2017-11-16 15:56:45
The problem was repeated :(



Nov 15 18:16:48 DHCP INFO DHCPC Recv ACK from server ac102801 with ip ac10283b lease time 3600
Nov 15 18:16:48 DHCP INFO DHCPC:GET ip:ac10283b mask:ffffff00 gateway:ac102801 dns1:52c160c7 dns2:52c1601a static route:0
Nov 15 18:16:49 DHCP NOTICE Dynamic IP(DHCP Client) obtained an IP successfully
Nov 15 18:46:47 DHCP INFO DHCPC Send REQUEST to server ac102801 with request ip ac10283b
Nov 15 18:46:49 DHCP INFO DHCPC Recv ACK from server ac102801 with ip ac10283b lease time 3600
Nov 15 18:46:49 DHCP INFO DHCPC:GET ip:ac10283b mask:ffffff00 gateway:ac102801 dns1:52c160c7 dns2:52c1601a static route:0
Nov 15 18:46:49 DHCP NOTICE Dynamic IP(DHCP Client) obtained an IP successfully
Nov 15 19:16:48 DHCP INFO DHCPC Send REQUEST to server ac102801 with request ip ac10283b
Nov 15 19:25:42 OTHER WARNING Fail to Connect the mail server.
Nov 15 19:28:03 DHCP INFO DHCPC Send REQUEST to server ac102801 with request ip ac10283b
Nov 15 19:28:04 DHCP INFO DHCPC Recv ACK from server ac102801 with ip ac10283b lease time 3600
Nov 15 19:28:04 DHCP INFO DHCPC:GET ip:ac10283b mask:ffffff00 gateway:ac102801 dns1:52c160c7 dns2:52c1601a static route:0
Nov 15 19:28:04 DHCP NOTICE Dynamic IP(DHCP Client) obtained an IP successfully
Nov 15 19:58:03 DHCP INFO DHCPC Send REQUEST to server ac102801 with request ip ac10283b
Nov 15 19:58:04 DHCP INFO DHCPC Recv ACK from server ac102801 with ip ac10283b lease time 3600
Nov 15 19:58:04 DHCP INFO DHCPC:GET ip:ac10283b mask:ffffff00 gateway:ac102801 dns1:52c160c7 dns2:52c1601a static route:0
Nov 15 19:58:05 DHCP NOTICE Dynamic IP(DHCP Client) obtained an IP successfully
Nov 15 20:28:03 DHCP INFO DHCPC Send REQUEST to server ac102801 with request ip ac10283b
Nov 15 20:28:04 DHCP INFO DHCPC Recv ACK from server ac102801 with ip ac10283b lease time 3600
Nov 15 20:28:04 DHCP INFO DHCPC:GET ip:ac10283b mask:ffffff00 gateway:ac102801 dns1:52c160c7 dns2:52c1601a static route:0
Nov 15 20:28:04 DHCP NOTICE Dynamic IP(DHCP Client) obtained an IP successfully
Nov 15 20:35:19 DHCP INFO DHCPC Unicasting a release of 172.16.40.59 to 172.16.40.1
Nov 15 20:35:19 DHCP INFO DHCPC Entering released state
Nov 15 20:35:21 DHCP INFO DHCPC perform a DHCP renew
Nov 15 20:35:21 DHCP INFO DHCPC Send DISCOVER with request ip AC10283B and unicast flag 0
Nov 15 20:35:23 DHCP INFO DHCPC Send DISCOVER with request ip AC10283B and unicast flag 0
Nov 15 20:35:25 DHCP INFO DHCPC Send DISCOVER with request ip AC10283B and unicast flag 0
Nov 15 20:35:29 DHCP INFO DHCPC Send DISCOVER with request ip AC10283B and unicast flag 1
Nov 15 20:35:31 DHCP INFO DHCPC Send DISCOVER with request ip AC10283B and unicast flag 1
Nov 15 20:35:33 DHCP INFO DHCPC DHCP Service unavailable, recv no OFFER
Nov 15 20:35:43 DHCP INFO DHCPC Send DISCOVER with request ip AC10283B and unicast flag 0
Nov 15 20:35:45 DHCP INFO DHCPC Send DISCOVER with request ip AC10283B and unicast flag 0
Nov 15 20:35:47 DHCP INFO DHCPC Send DISCOVER with request ip AC10283B and unicast flag 0
Nov 15 20:35:51 DHCP INFO DHCPC Send DISCOVER with request ip AC10283B and unicast flag 1
Nov 15 20:35:53 DHCP INFO DHCPC Send DISCOVER with request ip AC10283B and unicast flag 1
Nov 15 20:35:55 DHCP INFO DHCPC DHCP Service unavailable, recv no OFFER
Nov 15 20:36:35 DHCP INFO DHCPC Send DISCOVER with request ip AC10283B and unicast flag 0
Nov 15 20:36:35 DHCP INFO DHCPC Recv OFFER from server ac102801 with ip ac10283b
Nov 15 20:36:35 DHCP INFO DHCPC Send REQUEST to server ac102801 with request ip ac10283b
Nov 15 20:36:36 DHCP INFO DHCPC Recv ACK from server ac102801 with ip ac10283b lease time 3600
Nov 15 20:36:36 DHCP INFO DHCPC:GET ip:ac10283b mask:ffffff00 gateway:ac102801 dns1:52c160c7 dns2:52c1601a static route:0
Nov 15 20:36:37 DHCP NOTICE Dynamic IP(DHCP Client) obtained an IP successfully
Nov 15 20:59:58 DHCP INFO DHCPC Unicasting a release of 172.16.40.59 to 172.16.40.1
Nov 15 20:59:58 DHCP INFO DHCPC Entering released state
Nov 15 21:00:00 DHCP INFO DHCPC perform a DHCP renew
Nov 15 21:00:00 DHCP INFO DHCPC Send DISCOVER with request ip AC10283B and unicast flag 0
Nov 15 21:00:02 DHCP INFO DHCPC Send DISCOVER with request ip AC10283B and unicast flag 0
Nov 15 21:00:04 DHCP INFO DHCPC Send DISCOVER with request ip AC10283B and unicast flag 0
Nov 15 21:00:08 DHCP INFO DHCPC Send DISCOVER with request ip AC10283B and unicast flag 1
Nov 15 21:00:10 DHCP INFO DHCPC Send DISCOVER with request ip AC10283B and unicast flag 1
Nov 15 21:00:12 DHCP INFO DHCPC DHCP Service unavailable, recv no OFFER
Nov 15 21:00:22 DHCP INFO DHCPC Send DISCOVER with request ip AC10283B and unicast flag 0
Nov 15 21:00:24 DHCP INFO DHCPC Send DISCOVER with request ip AC10283B and unicast flag 0
Nov 15 21:00:26 DHCP INFO DHCPC Send DISCOVER with request ip AC10283B and unicast flag 0
Nov 15 21:00:30 DHCP INFO DHCPC Send DISCOVER with request ip AC10283B and unicast flag 1
Nov 15 21:00:32 DHCP INFO DHCPC Send DISCOVER with request ip AC10283B and unicast flag 1
Nov 15 21:00:34 DHCP INFO DHCPC DHCP Service unavailable, recv no OFFER
Nov 15 21:01:14 DHCP INFO DHCPC Send DISCOVER with request ip AC10283B and unicast flag 0
Nov 15 21:01:16 DHCP INFO DHCPC Send DISCOVER with request ip AC10283B and unicast flag 0
Nov 15 21:01:18 DHCP INFO DHCPC Send DISCOVER with request ip AC10283B and unicast flag 0
Nov 15 21:01:22 DHCP INFO DHCPC Send DISCOVER with request ip AC10283B and unicast flag 1
Nov 15 21:01:24 DHCP INFO DHCPC Send DISCOVER with request ip AC10283B and unicast flag 1
Nov 15 21:01:26 DHCP INFO DHCPC DHCP Service unavailable, recv no OFFER
Nov 15 21:02:36 DHCP INFO DHCPC Send DISCOVER with request ip AC10283B and unicast flag 0
Nov 15 21:02:36 DHCP INFO DHCPC Recv OFFER from server ac102801 with ip ac10283b
Nov 15 21:02:36 DHCP INFO DHCPC Send REQUEST to server ac102801 with request ip ac10283b
Nov 15 21:02:38 DHCP INFO DHCPC Recv ACK from server ac102801 with ip ac10283b lease time 3600
Nov 15 21:02:38 DHCP INFO DHCPC:GET ip:ac10283b mask:ffffff00 gateway:ac102801 dns1:52c160c7 dns2:52c1601a static route:0
Nov 15 21:02:38 DHCP NOTICE Dynamic IP(DHCP Client) obtained an IP successfully
Nov 15 21:32:37 DHCP INFO DHCPC Send REQUEST to server ac102801 with request ip ac10283b
Nov 15 21:32:38 DHCP INFO DHCPC Recv ACK from server ac102801 with ip ac10283b lease time 3600
Nov 15 21:32:38 DHCP INFO DHCPC:GET ip:ac10283b mask:ffffff00 gateway:ac102801 dns1:52c160c7 dns2:52c1601a static route:0
Nov 15 21:32:38 DHCP NOTICE Dynamic IP(DHCP Client) obtained an IP successfully
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#4
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Re:Tp-link 841n loses connection
2017-11-24 17:51:17
check whether there is public WAN IP address and gateway on the router when connection drops. change DNS to 8.8.8.8 if yes. Verify your modem is fine. otherwise, contact tplink technical support. If you have had the router for a long time, then buy a new one. maybe it's aging.
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#5
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