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WDR3600 No wifi

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yousaf465
DD-WRT User

Joined: 12 Sep 2010
Posts: 380

Posted: Sun Sep 19, 2021 10:27 Post subject: WDR3600 No wifi

I have a Tplink WDR3600v1 running almost latest DD-WRT v3.0-r47381. It was previously running openwrt 3 years old.
now radios aren't working properly. I don't see any wifi signal on laptop or mobile devices.

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ho1Aetoo
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Joined: 19 Feb 2019
Posts: 2971
Location: Germany

Posted: Sun Sep 19, 2021 11:33 Post subject:

Well everything seems to work (based on the screenhots)

but 161+165 is a bad channel

161 is the primary channel
165 is the 40Mhz extension channel

and this is more or less not a valid configuration

161+157 would be a better configuration

and that some clients can't see the channels doesn't surprise me either, the firmware of the clients must support at least UNII+3 and not all clients support all channels

so better test the lower channels and start with 36

yousaf465
DD-WRT User

Joined: 12 Sep 2010
Posts: 380

Posted: Sun Sep 19, 2021 12:54 Post subject:

ho1Aetoo wrote:

I can't see 2.4Ghz wifi either. It is on Channel 9.
Yes I had issue with channel 36-40 on my other router Asus RT-AC68U running tomato 2021.5 , mobile clients could not connect.
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ho1Aetoo
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Joined: 19 Feb 2019
Posts: 2971
Location: Germany

Posted: Sun Sep 19, 2021 13:07 Post subject:

well if there was openwrt on the router before then it can't hurt to delete the nvram

nvram erase && reboot

Quote:

Yes I had issue with channel 36-40 on my other router Asus RT-AC68U running tomato 2021.5 , mobile clients could not connect.

this is first broadcom and not atheros
and secondly tomato and not dd-wrt

as said delete the nvram, configure the router correctly and then look again

Edit: typo corrected

Last edited by ho1Aetoo on Wed Sep 22, 2021 7:18; edited 1 time in total

yousaf465
DD-WRT User

Joined: 12 Sep 2010
Posts: 380

Posted: Sun Sep 19, 2021 13:50 Post subject:

Cleared NVME from ssh. changed setting but only success is I can see two wifi direct device both windows but no other clients. one of these is atleast 20 feets away. WDR3600 is sitting 2 feet from my main wifirouter/FTTH modem but still no sign of either ftth modem
s wifi or dd-wrt's own wifi

ho1Aetoo
DD-WRT Guru

Joined: 19 Feb 2019
Posts: 2971
Location: Germany

Posted: Sun Sep 19, 2021 15:09 Post subject:

yousaf465 wrote:

changed setting but only success is I can see two wifi direct device both windows but no other clients. one of these is atleast 20 feets away.

Well the site survey searchs for accesspoints
only AP in master mode send beacons frames
Stations / Clients do not send beacons frames and therefore can not be found

The site survey search is also radio specific and you have searched only with 2,4Ghz / wlan0

yousaf465 wrote:

is sitting 2 feet from my main wifirouter/FTTH modem but still no sign of either ftth modem
s wifi or dd-wrt's own wifi

you will not find your own dd-wrt router in the site survey

you have selected USA as regulatory domain
they only have wifi channels 1-11 in the united states
the modem could also be on channel 12-13 - who knows / not enough information

yousaf465 wrote:

network mode should be N/G-mixed and autochannel should certainly be disabled for now

Edit: perhaps this also applies

https://svn.dd-wrt.com/changeset/47463

https://svn.dd-wrt.com/ticket/7471

yousaf465
DD-WRT User

Joined: 12 Sep 2010
Posts: 380

Posted: Mon Sep 20, 2021 8:27 Post subject:

ho1Aetoo wrote:

yousaf465 wrote:

changed setting but only success is I can see two wifi direct device both windows but no other clients. one of these is atleast 20 feets away.

yousaf465 wrote:

is sitting 2 feet from my main wifirouter/FTTH modem but still no sign of either ftth modem
s wifi or dd-wrt's own wifi

yousaf465 wrote:

network mode should be N/G-mixed and autochannel should certainly be disabled for now

Edit: perhaps this also applies

https://svn.dd-wrt.com/changeset/47463

https://svn.dd-wrt.com/ticket/7471

I am in office, I do have access to my tomato router using tail-scale subnet feature.
I did a site survey and my main router/ftth modem is on wifi channel 7.

I will change network mode to N/G-mixed and set the channel to 7. will report again.
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ho1Aetoo
DD-WRT Guru

Joined: 19 Feb 2019
Posts: 2971
Location: Germany

Posted: Mon Sep 20, 2021 16:36 Post subject:
maybe also try the new build https://forum.dd-wrt.com/phpBB2/viewtopic.php?t=330289

kernel-panic69
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Joined: 08 May 2018
Posts: 14217
Location: Texas, USA

Posted: Mon Sep 20, 2021 18:30 Post subject:

yousaf465 wrote:

I have a Tplink WDR3600v1 running almost latest DD-WRT v3.0-r47381.

ho1Aetoo wrote:

Edit: perhaps this also applies

https://svn.dd-wrt.com/changeset/47463

https://svn.dd-wrt.com/ticket/7471

No, it doesn't.

https://svn.dd-wrt.com/changeset/47448/
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yousaf465
DD-WRT User

Joined: 12 Sep 2010
Posts: 380

Posted: Tue Sep 21, 2021 14:57 Post subject:
same issue still. can it be due to antenna? one antenna doesn't seems right to me. _________________ Upgraded to DD-WRT v24-sp2 (03/25/13) std - build 21061 DD-WRT v24-sp2 (10/12/12) std (SVN revision 20119) TP-link 741ND DD-WRT v24-sp2 (11/21/10) std (SVN revision 15778) Finding the correct MTU value for your ISP \| BrainSlayer Vlan on Atheros \| debrick Buffalo WZR-HP-G300NH

ho1Aetoo
DD-WRT Guru

Joined: 19 Feb 2019
Posts: 2971
Location: Germany

Posted: Tue Sep 21, 2021 15:01 Post subject:

You can check the antennas with the following command (if clients are connected):

Code:

iw dev wlan0 station dump

iw dev wlan1 station dump

Quote:

signal: -52 [-60, -57, -60, -58] dBm
signal avg: -55 [-63, -59, -63, -61] dBm

The ones in brackets [ ] are my 4 antennas.

yousaf465
DD-WRT User

Joined: 12 Sep 2010
Posts: 380

Posted: Tue Sep 21, 2021 19:41 Post subject:

ho1Aetoo wrote:

You can check the antennas with the following command (if clients are connected):

Code:

iw dev wlan0 station dump

iw dev wlan1 station dump

Quote:

signal: -52 [-60, -57, -60, -58] dBm
signal avg: -55 [-63, -59, -63, -61] dBm

The ones in brackets [ ] are my 4 antennas.

I can't connect any client as of yet. Both commands returned empty

Code:

==========================================================

___ ___ _ _____ ______ ____ ___
/ _ \/ _ \___| | /| / / _ \/_ __/ _ __|_ / / _ \
/ // / // /___/ |/ |/ / , _/ / / | |/ //_ <_/ // /
/____/____/ |__/|__/_/|_| /_/ |___/____(_)___/

DD-WRT v3.0
https://www.dd-wrt.com

==========================================================

BusyBox v1.34.0 (2021-09-20 08:56:57 +07) built-in shell (ash)

root@DD-WRT:~# iw dev wlan0 station dump
root@DD-WRT:~# iw dev wlan1 station dump
root@DD-WRT:~#

Wildlion
DD-WRT Guru

Joined: 24 May 2016
Posts: 1414

Posted: Tue Sep 21, 2021 23:51 Post subject:
I am running: DD-WRT v3.0-r47381 and wireless is working fine the commands that were given worked for me as well... so do an ifconfig to see if wireless is even up... you coudl try iwconfig Are you trying to have the WDR-3600 acting as an AP or a repeater? Are you getting to much interference, or have bad settings? Am i just not following?

ho1Aetoo
DD-WRT Guru

Joined: 19 Feb 2019
Posts: 2971
Location: Germany

Posted: Wed Sep 22, 2021 7:18 Post subject:

Yes, the problem is that Station Dump only shows something when clients are connected.

and yousaf465 said that his clients can not see the router, as if no beacons are sent.

But something is sent according to screenshots (TX 365 OK).

I have not found many reports about the router in the forum.

The last report was possibly this one:

https://forum.dd-wrt.com/phpBB2/viewtopic.php?p=1224107#1224107

I also just see a typo from me

ho1Aetoo wrote:

well if there was openwrt on the router before then it can't hurt to delete the nvram

nvram erease && reboot

it can't work like this, the correct command is

nvram erase && reboot

So maybe delete the nvram again (correctly) or try the image from the linked build thread.

I am in any case somewhat perplexed with the router, visually everything looks ok.

yousaf465
DD-WRT User

Joined: 12 Sep 2010
Posts: 380

Posted: Wed Sep 22, 2021 8:28 Post subject:

Wildlion wrote:

I am running: DD-WRT v3.0-r47381

and wireless is working fine

the commands that were given worked for me as well... so do an ifconfig to see if wireless is even up...

you coudl try iwconfig

Are you trying to have the WDR-3600 acting as an AP or a repeater?

Are you getting to much interference, or have bad settings? Am i just not following?

I am trying to set up it as an AP.
here is output from iwconfig

Code:

BusyBox v1.34.0 (2021-09-20 08:56:57 +07) built-in shell (ash)

root@DD-WRT:~# iwconfig
vlan1 no wireless extensions.

lo no wireless extensions.

br0 no wireless extensions.

wlan1 IEEE 802.11 Mode:Master
Retry short limit:7 RTS thr:off Fragment thr:off
Power Management:off

wlan0 IEEE 802.11 Mode:Master
Retry short limit:7 RTS thr:off Fragment thr:off
Power Management:off

eth0 no wireless extensions.

vlan2 no wireless extensions.

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