Share Linksys wireless settings

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foz111
DD-WRT User


Joined: 01 Oct 2017
Posts: 492
Location: Earth

PostPosted: Thu Jan 28, 2021 16:18    Post subject: Share Linksys wireless settings Reply with quote
Anyone care to share the best Linksys advanced Wireless settings?
I use Netgear hardware, i set up a friends wrt3200 some time ago, i am aware of the s**t wireless driver, but just asking for any improved settings i can make to help him out.
Cheers in advanced

P.s. Please keep pictures 765 wide no bigger.

_________________
Netgear R7800 PPPoE Main Router
Network IPV4 eth1 - Isolated Vlan eth1.3 on br1 For IoT Devices With 3 x Linksys velop Bridged mesh Nodes (Amazon Echos, smart TV's, etc.)
BT Whole Home 4 Node Mesh Wi-Fi, Router Wi-Fi Disabled. OVPN Server With Paid OVPN client & Wireguard Client.
Gateway Mode, DNSMasq, Static Leases & DHCP, Pi-Hole DNS & Running Unbound.
Sponsor
foz111
DD-WRT User


Joined: 01 Oct 2017
Posts: 492
Location: Earth

PostPosted: Mon Feb 01, 2021 16:39    Post subject: Reply with quote
170 views LOL, you Linksys guys are a tight bunch not wanting to share your advanced wireless settings!!
i had searched before hand thinking someone must have posted the best configuration but no go...

_________________
Netgear R7800 PPPoE Main Router
Network IPV4 eth1 - Isolated Vlan eth1.3 on br1 For IoT Devices With 3 x Linksys velop Bridged mesh Nodes (Amazon Echos, smart TV's, etc.)
BT Whole Home 4 Node Mesh Wi-Fi, Router Wi-Fi Disabled. OVPN Server With Paid OVPN client & Wireguard Client.
Gateway Mode, DNSMasq, Static Leases & DHCP, Pi-Hole DNS & Running Unbound.
blkt
DD-WRT Guru


Joined: 20 Jan 2019
Posts: 3461

PostPosted: Mon Feb 01, 2021 17:33    Post subject: Reply with quote
There is no one size fits all, especially for Marvell WRT series as configuration is so highly dependent on client devices.

It is a game of dancing around problematic settings, especially with Apple devices, smart home automation or IoT.

Pretty much it's guaranteed to make you want to drive a sledgehammer through it. Maybe reference the wiki <shrug>.

Tell us about his client devices, and also the current settings. Which builds have been in use and when last reset?


Last edited by blkt on Mon Feb 01, 2021 17:48; edited 3 times in total
Justanotherbrokenrouter
DD-WRT User


Joined: 27 Apr 2019
Posts: 164

PostPosted: Mon Feb 01, 2021 17:36    Post subject: Reply with quote
Comments about advanced wireless settings have been made by many DD-WRT users, and many are trying to help. Keep on reading the answers will be right under your nose. Shocked
foz111
DD-WRT User


Joined: 01 Oct 2017
Posts: 492
Location: Earth

PostPosted: Mon Feb 01, 2021 20:03    Post subject: Reply with quote
Thanks guys,
He just asked me if i can make his wireless settings better with stronger signal but without being there and testing i am struggling with covid, i can only login over teamviewer. i can grab a screen shot of the settings i set it up with then if anyone can suggest anything better that would be great. (Clients: No apple devices just windows and android as far as i am aware)

_________________
Netgear R7800 PPPoE Main Router
Network IPV4 eth1 - Isolated Vlan eth1.3 on br1 For IoT Devices With 3 x Linksys velop Bridged mesh Nodes (Amazon Echos, smart TV's, etc.)
BT Whole Home 4 Node Mesh Wi-Fi, Router Wi-Fi Disabled. OVPN Server With Paid OVPN client & Wireguard Client.
Gateway Mode, DNSMasq, Static Leases & DHCP, Pi-Hole DNS & Running Unbound.
blkt
DD-WRT Guru


Joined: 20 Jan 2019
Posts: 3461

PostPosted: Mon Feb 01, 2021 20:09    Post subject: Reply with quote
For advanced settings currently I only have altered TX power at 30 dBm, Short Preamble Enabled.

Default is 20, and 23 is approx. double the transmit power (one direction, clients do their own thing).

I also use Wireless Network Mode "Mixed" for compatibility on both 2.4 and 5 GHz radios.
SurprisedItWorks
DD-WRT Guru


Joined: 04 Aug 2018
Posts: 1296
Location: Appalachian mountains, USA

PostPosted: Tue Feb 02, 2021 18:00    Post subject: Reply with quote
blkt wrote:
For advanced settings currently I only have altered TX power at 30 dBm, Short Preamble Enabled.

Default is 20, and 23 is approx. double the transmit power (one direction, clients do their own thing).

Default depends on your regulatory-environment setting. In the US we get a 30 dBm default, but on the lower 5 GHz channels, the Tx power showing on the status page will quietly drop to 23 dBm because of a regulatory limit of 250 mW. This is with Tx Power still showing as 30 dBm in Wireless settings.

Just to throw a wrench into it, I have experimented with lowering the Wireless page's Tx-power setting as low as 1 dB, the minimum it will accept. It has no effect on received signal strength at clients. The "setting" appears to be a placebo.

_________________
Six Linksys WRT1900ACSv2 routers on 46816, 48141: VLANs, VAPs, NAS, client mode, OpenVPN client (AirVPN), DDNS, wireguard servers and clients (AzireVPN), three DNSCrypt DNS providers (incl Quad9) via VPN clients.
blkt
DD-WRT Guru


Joined: 20 Jan 2019
Posts: 3461

PostPosted: Tue Feb 02, 2021 18:18    Post subject: Reply with quote
SurprisedItWorks wrote:
Default depends on your regulatory-environment setting. In the US we get a 30 dBm default, but on the lower 5 GHz channels, the Tx power showing on the status page will quietly drop to 23 dBm because of a regulatory limit of 250 mW. This is with Tx Power still showing as 30 dBm in Wireless settings.
Thought this would be stating the obvious, but thanks for filling in the blanks. Running 30 dBm here both Ch 1 and 149.
Some routers do support master mode and will allow 30 dBm (not default, max) with the lower 5 GHz channels in USA.
SurprisedItWorks wrote:
Just to throw a wrench into it, I have experimented with lowering the Wireless page's Tx-power setting as low as 1 dB, the minimum it will accept. It has no effect on received signal strength at clients. The "setting" appears to be a placebo.
At 23 dBm compared to default 20, night and day for signal strength and range (one direction, clients limit themselves).
You do have a point though as client devices usually transmit back to the router or AP somewhere around 9 to 18 dBm.

country US: DFS-FCC
(2400 - 2472 @ 40), (30 dBm)
# 5.15 ~ 5.25 GHz: 30 dBm for master mode, 23 dBm for clients
(5150 - 5250 @ 80), (23 dBm), AUTO-BW
(5250 - 5350 @ 80), (23 dBm), DFS, AUTO-BW
# This range ends at 5725 MHz, but channel 144 extends to 5730 MHz.
# Since 5725 ~ 5730 MHz belongs to the next range which has looser
# requirements, we can extend the range by 5 MHz to make the kernel
# happy and be able to use channel 144.
(5470 - 5730 @ 160), (23 dBm), DFS
(5730 - 5850 @ 80), (30 dBm)
# 60g band
# channels 1-6 EIRP=40dBm(43dBm peak)
(57240 - 71000 @ 2160), (40 dBm)

For whatever reason country GB displays mW not dBm so I converted them below.

country GB: DFS-ETSI
(2400 - 2483.5 @ 40), (20 dBm)
(5150 - 5250 @ 80), (23 dBm), NO-OUTDOOR, AUTO-BW, wmmrule=ETSI
(5250 - 5350 @ 80), (20 dBm), NO-OUTDOOR, DFS, AUTO-BW, wmmrule=ETSI
(5470 - 5730 @ 160), (27 dBm), DFS, wmmrule=ETSI
# short range devices (ETSI EN 300 440-1)
(5725 - 5875 @ 80), (20 dBm), DFS
# 60 GHz band channels 1-6
(57000 - 71000 @ 2160), (40 dBm)

https://git.kernel.org/pub/scm/linux/kernel/git/sforshee/wireless-regdb.git/tree/db.txt

https://w.wol.ph/2015/08/28/maximum-wifi-transmission-power-country/

http://www.extremetech.com/wp-content/uploads/2014/06/graphic-80211-acChannels-all.png

UK 5GHz WLAN Spectrum Allocation (Aug 2017) PDF

http://wifinigel.blogspot.com/2018/05/updated-white-paper-on-license-exempt.html

https://www.silextechnology.com/unwired/changes-to-the-5ghz-wi-fi-band-in-the-uk
Argenis
DD-WRT User


Joined: 18 Feb 2019
Posts: 157

PostPosted: Wed Feb 03, 2021 9:00    Post subject: Reply with quote
They're on my signature (since I got tired of looking for it).

I've had very good luck with my 3200ACM, I had a 32x and that one gave me terrible issues, so I stopped using it.

I've found that the driver has issues with higher power settings sometimes, so since I don't really need that much, lowering it to 20 has kept update after update happy.

_________________
Router: Linksys WRT3200ACM WLAN0 and 1 have same SSID
88W8964 802.11ac WLAN0 Mode AP VHT80 80MHz Mixed Mode Channel and Extension Channel Auto Extension LL-6
88W8964 802.11ac WLAN1 Mode AP 20 MHz Mixed Mode Channel Auto
SD8887 802.11ac disabled but visible on GUI and CLI
TX Power 18 dBm
Antenna Gain 0 dBi
U-APSD (Automatic Power Save)Enabled 
Protection Mode None
RTS Threshold Disabled
Short Preamble Disabled 
Short GI Enabled
Single User Beamforming Enabled
Multi User Beamforming Enabled 
AP Isolation Disabled
Beacon Interval 100
DTIM Interval 2
WMM Support Enabled 
Radar Detection Disabled 
ScanList default
Sensitivity Range (ACK Timing) 500 (Default: 500 meters)
Max Associated Clients 256 (Default: 256 Clients)
Minimum Signal for authenticate -128
Minimum Signal for connection -128
Poll Time for signal lookup 10
Amount of allowed low signals 3
Wireless security is WPA2 Personal CCMP-128 only
QAM256 is on
Justanotherbrokenrouter
DD-WRT User


Joined: 27 Apr 2019
Posts: 164

PostPosted: Wed Feb 03, 2021 23:33    Post subject: Reply with quote
Just my go to build until I can find a newer stable build that I can pick to death.

IEEE 802.11: deauthenticated due to inactivity (timer DEAUTH/REMOVE), or having any other connection problems. Try below.

If this fault is seen in your Syslogs then you may want to Enable Single User Beamforming, and Multi User Beamforming. My Note 9 has the same problems with connectivity as some Apple device owners have stated in newer builds. Sorry haven't tested on newer Android (Note) devices, or any Apple devices with issues. Others in my household uses newer Android devices without the need of enabling Beamforming. I haven't had any luck on newer builds yet. WiFi is very buggy for my Note 9, but work well with r44048.

With these settings below WiFi is stable.
R41379 (aka R41380), and R44048 are my recommended builds!
I can use about any Wireless Physical Interface ath0 [5 GHz/802.11ac] - 88W8964 802.11ac settings, and WiFi will run almost perfect.

If anyone is still having issues using build r44048 due to 50% Load Average, or Wireless Physical Interface ath2 [2.4GHz/5 GHz/802.11ac] - SD8887 802.11ac not Visible on GUI.
Just install a older build R41379 (aka R41380) Recommended, and (DISABLE) Physical Interface ath2 [2.4GHz/5 GHz/802.11ac] - SD8887 802.11ac = Wireless Network Mode. Save, and reboot router. Log back into R41379 (aka R41380), go to Firmware upgrade tab. Don't reset, and Webflash file to R44048. Then R44048 is a very stable build!

Connection Type: DHCP
Ignore WAN DNS: IPv4 DNS 0/IPv4 DNS 1
Now able to set just two Static DNS. Ignore WAN DNS Works as intended.
Syslog is the same as DNS set. Dnsmasq no-resolv/strict-order no longer needed.
Browser: Firefox Version 85.0 (64-bit)
Router Model: Linksys WRT3200ACM
Previous Version: r41379 (aka r41380) Default Build
Firmware Version: DD-WRT v3.0-r44048 std (08/02/20) Webflashed from build r41379
Kernel Version: Linux 4.9.231 #1979 SMP Sun Aug 2 03:35:09 +03 2020 armv7l
OpenVPN Client: (NordVPN Server) OK
5GHz 40MHz Mixed 36 + 40 5180MHz Upper WPA2 CCMP-128 (AES) Only) OK
(Received RX OK, no error) (Transmitted TX OK, no error)
2.4GHz 20MHz Mixed Auto, or 7-2442MHz WPA2 CCMP-128 (AES) Only) OK
(Received RX OK, no error) (Transmitted TX OK, no error)
Wireless Physical Interface ath2 [2.4GHz/5 GHz/802.11ac] - SD8887 802.11ac
Disabled. Visible on GUI OK
Load Average: 0.00, 0.00, 0.00 0% OK
Temperatures: CPU 56.0 °C / WL0 32.8 °C / WL1 33.9 °C OK (USB cooling fan)
Clients: 2 PS3s, 2 PS4s, 3 Firesticks, 1 Firebox, 3 Android phones, 2 Laptops, 1 Desktop
Status: Webflash no reset, Uptime, QoS FQ_CODEL MAC Priority, no keep alive, or reboot needed OK.
Using (Speedtest) Android App will cause WiFi error's. If it does then make adjustments.

5GHz 40MHz Mixed 36 + 40 5180MHz Upper (WPA2 CCMP-128 (AES) Only) Just a recommendation what works for me! May not work the same for you, or your devices.
** Are the only changes from default
Advanced Settings
TX Power 30 dBm (Changed to 23 dBm on other builds)
Antenna Gain 0 dBi
**U-APSD (Automatic Power Save) Enabled**
Protection Mode None
RTS Threshold Disabled
Short Preamble Disabled
Short GI Enabled
**Single User Beamforming Enabled**
**Multi User Beamforming Enabled**
AP Isolation Disabled
Beacon Interval 100
DTIM Interval 2
WMM Support Enabled
Radar Detection Disabled
ScanList default
Sensitivity Range (ACK Timing) 500 (Default: 500 meters)
**Note when webflashing from Build R41379 (aka R41380) the default will be set to 2000 just change it back to Default: 500 meters**
Max Associated Clients 256 (Default: 256 Clients)
Minimum Signal for authenticate -128
Minimum Signal for connection -128
Poll Time for signal lookup 10
Amount of allowed low signals 3
Other settings
Allow Channel Overlapping Disable

2.4GHz 20MHz Mixed Auto, or 7-2442MHz (WPA2 CCMP-128 (AES) Only)
** Are the only changes from default
Advanced Settings
TX Power 30 dBm (Changed to 23 dBm on other builds)
Antenna Gain 0 dBi
**U-APSD (Automatic Power Save) Enabled**
Protection Mode None
RTS Threshold Disabled
Short Preamble Disabled
Short GI Enabled
AP Isolation Disabled
Beacon Interval 100
DTIM Interval 2
WMM Support Enabled
Radar Detection Disabled
ScanList default
Sensitivity Range (ACK Timing) 500 (Default: 500 meters)
**Note when webflashing from Build R41379 (aka R41380) the default will be set to 2000 just change it back to Default: 500 meters**
Max Associated Clients 256 (Default: 256 Clients)
Minimum Signal for authenticate -128
Minimum Signal for connection -128
Poll Time for signal lookup 10
Amount of allowed low signals 3
Other Settings
TurboQAM (QAM256) support Disable
300000
DD-WRT Novice


Joined: 18 Aug 2011
Posts: 11

PostPosted: Thu Feb 04, 2021 17:44    Post subject: Reply with quote
this is my router setting the best speed it can support is 866 Mbps but if you far away from router it slow down

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Zyxx
DD-WRT User


Joined: 28 Dec 2018
Posts: 458

PostPosted: Fri Feb 05, 2021 10:02    Post subject: Reply with quote
Settings of my 1900acsv2:

2.4GHz https://i.imgur.com/FvcgdSE.jpg
5GHz https://i.imgur.com/KVkOCXI.jpg


Enabled RTS/CTS a few weeks ago, since my stupid neighbours keep adding autochannel devices, always hogging the whole 2.4GHz and 5GHz spectrum (also they use maximum channel width... Mad).

Working very well so far. Usually 3-8 devices active during the day. Currently no ios based device though.
Multiple devices use Syncthing to share images / kernel / backups via Wifi without any problem.
oliver44
DD-WRT User


Joined: 01 Jun 2016
Posts: 161

PostPosted: Fri Feb 05, 2021 10:21    Post subject: Reply with quote
DD-WRT Router Model Linksys WRT1900ACS V2
Firmware Version DD-WRT v3.0-r45677 std (02/04/21)
Kernel Version Linux 4.9.254 #2388 SMP Thu Feb 4 02:05:53 +07 2021 armv7l
Connection Type PPP0E-OK +ipv6 DHCP with Prefix Delegation-ok
Port Range Forwarding-ok


A very good and stable firmware version for my router !
in the link below you have all the information with the tests, to view an image in the original format click on the image, click right on the image and choose the image viewing option!
http://s.go.ro/sdj7ms8e

_________________
Internet provider https://en.wikipedia.org/wiki/RCS_%26_RDS RCS & RDS 1Gbps
Linksys WRT1900ACS v.2 -OpenWrt/DD-WRT
WDR3600 rev.1.5 - OpenWrt
Zyxx
DD-WRT User


Joined: 28 Dec 2018
Posts: 458

PostPosted: Fri Feb 05, 2021 10:53    Post subject: Reply with quote
@oliver44 currently only two out of your three Screenshots are working on my end.
The 5GHz view option presents the preview picture again... waaaaay too small for my eyes Embarassed.
oliver44
DD-WRT User


Joined: 01 Jun 2016
Posts: 161

PostPosted: Fri Feb 05, 2021 20:47    Post subject: Reply with quote
Click on the image and after on the open image double click choose view image!
_________________
Internet provider https://en.wikipedia.org/wiki/RCS_%26_RDS RCS & RDS 1Gbps
Linksys WRT1900ACS v.2 -OpenWrt/DD-WRT
WDR3600 rev.1.5 - OpenWrt
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