Posted: Fri Feb 07, 2025 21:06 Post subject: Linksys MX4200v1 on v3.0-r59468, short WiFi range
Hi there,
I have a Linksys MX4200 v1 running DD-WRT v3.0-r59468 std with regular 2.4Ghz / 5 GHz setup and a 2.4 "Virtual AP" for my guests. Everything work as spected (clients connected to the Virtual AP can't access internal resources but they have working internet access).
The issue I'm having is that I need to stay close to the device to have Internet, I've tray to change the Domain to "Canada/Panama" and the 2.4 GHz and the 5GHz TX Power to "30 dBm" but the signal strength doesn't improve.
This is the 2.4 GHz configuration
And this is the 5 GHz configuration
The "SysInfo" page says that the TX Power of the 2.4 GHz network is "27 dBm" and for the 5 GHz is "17 dBm".
I would appreciate any ideas to I improve the WiFi signal.
Last edited by jsilvag on Fri Feb 07, 2025 21:20; edited 1 time in total
Joined: 16 Nov 2015 Posts: 6880 Location: UK, London, just across the river..
Posted: Fri Feb 07, 2025 21:17 Post subject:
disable airtime fairness, disable - diassos low ACK, set sensitivity range either 450, 900, or 1350
mine is set to 900 and have a great range...also bear in mind AX routers firmware is heavy WIP so yes there are complains like yours around as the main Developer is working on the radio drivers ATM...may be next build will be a progress...and its coming soon... _________________ Atheros
TP-Link WR740Nv1 ---DD-WRT 58184 WAP
TP-Link WR1043NDv2 -DD-WRT 61745 Gateway/DoT,Forced DNS,Ad-Block,Firewall,x4VLAN,VPN
TP-Link WR1043NDv2 -Gargoyle OS 1.15.x AP,DNS,QoS,Quotas
Qualcomm-Atheros
Netgear XR500 --DD-WRT 61843 Gateway/DoT,AD-Block,Forced DNS,AP&Net Isolation,x2VLAN,Vanilla
Netgear R7800 --DD-WRT 61843 Gateway/DNSCryptv2,AD-Block,Forced DNS,AP&Net Isolation,x3VLAN,Firewall,Vanilla
Netgear R9000 --DD-WRT 61711 Gateway/DoT,AD-Block,AP Isolation,Firewall,Forced DNS,x2VLAN,Vanilla
Dynalink DL-WRX36-DDWRT 61745
Broadcom
Netgear R7000 --DD-WRT 61745 Gateway/DNScrypt-proxy2/AD-Block,IPset Firewall,Forced DNS,x4VLAN,VPN
NOT USING 5Ghz ANYWHERE
------------------------------------------------------
Stubby DNS over TLS I DNSCrypt v2 by mac913
disable airtime fairness, disable - diassos low ACK, set sensitivity range either 450, 900, or 1350
mine is set to 900 and have a great range...also bear in mind AX routers firmware is heavy WIP so yes there are complains like yours around as the main Developer is working on the radio drivers ATM...may be next build will be a progress...and its coming soon...
I'll try your recommendations, btw I'm not complaining in a bad way, I'm just asking; I'm more that thankful that DD-WRT started to support WiFi 6 devices. I know DDWRT it's a very complex firmware, so thanks to all staff.
Also notice your channel selection is on Ch36 @24dBm. Look at the channel list and see if any other channels offer more power. Usually higher channels do allow higher txpower. Look at channels 149+ It should say @30dBm, but you will still not achieve that. But you should get higher power than what you currently have. _________________ - Linksys EA8500: I-Gateway, WAP/VAP 5ghz only. Features: VLANs, Samba, WG, Entware - r60xxx
- Linksys EA8500: 802.11s Secondary w/VLAN Trunk over 5ghz - r60xxx
- Linksys MX4300: 802.11s Primary w/VLAN Trunk over 5ghz. 2.4ghz WAP/VAP only - r60xxx
- Linksys MX4300: (WAP/VAP (7)) Multiple VLANs over single trunk port. Entware/Samba r60xxx
- Linksys MR7350: WDS Station for extended Ethernet r60xxx
- Linksys MR7500, MX8500: None in production. Just testing. r60xxx
- OSes: Fedora 40, 10 RPis (2,3,4,5), 23 ESP8266s: Straight from Amiga to Linux in '95, never having owned a Windows PC.
- Forum member #248
disable airtime fairness, disable - diassos low ACK, set sensitivity range either 450, 900, or 1350
mine is set to 900 and have a great range...also bear in mind AX routers firmware is heavy WIP so yes there are complains like yours around as the main Developer is working on the radio drivers ATM...may be next build will be a progress...and its coming soon...
I've changed "Airtime Fairness" and "Disassoc Low ACK" to "Disable" (was "Enabled" by default on both) and I've changed "Sensitivity Range / ACK Timing" to 900 (was "500" by default, although the Basic Wireless Settings Wiki indicates to try with 90), I'll report in a few days
Did the settings improve your range? I’m wondering if some of these Low transmit power issues on the mx4200,mx4300 line could be related to power supplies not supplying enough amps at times. Curious if we tried upgrading to a 12v x 3amp supply it would maintain the transmit power over time.
Joined: 06 Feb 2010 Posts: 7425 Location: Little Rock
Posted: Sun Feb 23, 2025 1:48 Post subject:
Proudx wrote:
Did the settings improve your range? I’m wondering if some of these Low transmit power issues on the mx4200,mx4300 line could be related to power supplies not supplying enough amps at times. Curious if we tried upgrading to a 12v x 3amp supply it would maintain the transmit power over time.
12v 3a is the default power supply already, at least for the mx4200 v1. Transmit power is limited by design. This is the regulatory info regarding the mx4200
Did the settings improve your range? I’m wondering if some of these Low transmit power issues on the mx4200,mx4300 line could be related to power supplies not supplying enough amps at times. Curious if we tried upgrading to a 12v x 3amp supply it would maintain the transmit power over time.
After a few weeks of testing I would say that Disable "Airtime Fairness" and "Disassoc Low ACK" make no difference in WiFi range, but setting the Channel 161 as lexridge said made a huge difference:
Radio Mode: AP
Network Mode: AX / AC / N Mixed
Channel Width: 80 MHz
Channel: 161 - 5805 MHz (30 dBm)
Extension Channel: LL (-6)
BTW, can someone explain to me how to change the email address of my DD-WRT account?
Joined: 08 May 2018 Posts: 16149 Location: Texas, USA
Posted: Sun Mar 09, 2025 1:24 Post subject:
buddee wrote:
Proudx wrote:
Did the settings improve your range? I’m wondering if some of these Low transmit power issues on the mx4200,mx4300 line could be related to power supplies not supplying enough amps at times. Curious if we tried upgrading to a 12v x 3amp supply it would maintain the transmit power over time.
12v 3a is the default power supply already, at least for the mx4200 v1. Transmit power is limited by design. This is the regulatory info regarding the mx4200
