TL-WR841ND v8 Reboot itself..

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Sourc7
DD-WRT Novice


Joined: 10 Aug 2013
Posts: 2

PostPosted: Thu Aug 15, 2013 14:25    Post subject: TL-WR841ND v8 Reboot itself.. Reply with quote
Hi everyone

I Installed DD-WRT v24-sp2 (07/24/13) std on my TP-Link TL-WR841ND v8 and success ...

But the problem : router is restart itself , sometimes after 2 hours , 5 hours , 31 min , 5 min , 14 hours and more

The stats of the router : CPU , RAM , NVRAM

CPU : 0.01, 0.04, 0.04

RAM : Free 41% 11932 kB / 29176 kB

NVRAM : 18.99 KB / 64 KB

Active IP Connections 4% 146

Can anyone help me ?

Thanks

-- Edit

I already change my power adapter
Changing another setting
Viewing log from syslogd

but it's still has random reboot , it's very annoying
i not get any log before it's reboot
only i got wifi error "failed to stop tx dma queues"
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Sourc7
DD-WRT Novice


Joined: 10 Aug 2013
Posts: 2

PostPosted: Sun Sep 15, 2013 13:02    Post subject: Reply with quote
I found the problem , I see on the log there are message : - ath0: STA 94:35:0a:xx:xx:xx IEEE 802.11: disconnected due to missing ACKs

it's make client disconnect and make wifi reboot*
wifi reboot after i got too many disconnect

and it happen only when i watch youtube , do speedtest , heavy internet usage , etc

is anyone has solution ?
Thanks

-------- Edit
I success disable disassoc_low_ack , and there are no disconnection again or missing ACK's message , but the router is still rebooting if doing heavy internet usage , watching youtube , speedtest , and poor wifi signal

This script to disable disassoc_low_ack , put this on startup

#!/bin/sh
sed -i 's/disassoc_low_ack=1/disassoc_low_ack=0/' /tmp/ath0_hostap.conf
sleep 32
killall hostapd
sleep 5
hostapd -B -P /var/run/ath0_hostapd.pid /tmp/ath0_hostap.conf

Wink
plazma
DD-WRT User


Joined: 22 Feb 2012
Posts: 68

PostPosted: Sun Dec 15, 2013 17:41    Post subject: Reply with quote
Hi Sourc7,

Ive tried your script on the latest build (r23082) however the wireless never comes backup up.

hostapd re-launches as expected as in i can see it running using ps | grep hostapd

Im on a 1043nd any idea why hostapd doesnt re-start properly?
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