/sbin/gpio enable 9 (this enables pin 9, ie./sbin/gpio poll 9 (this tells if pin 9 is 00 = off or 01 = on).The command /sbin/gpio allows one to examine and manipulate the GPIO pin status. Most of the LEDs above are connected to / controlled by GPIO pins. The brightness of the LEDs can be adjusted with this command:Įcho 255 > /sys/class/leds/mamba\:white\:wan/ value ranges from 0 to 255 (minimum to maximum). The 4 ethernet ports have two LEDs each but do not show up here. NOTE: mamba is the codename for the 1900AC v1, while cobra is v2. To see the list of LEDs, run the ls -l /sys/class/leds My router is second-hand and it's quite evident that the frequently used LEDs are dimmer than the others. The LEDs seem to lose brightness over time according to this. They both turn on when USB ports are enabled (see services) and turn off when they are disabled, regardless of whether something is plugged in or not. The LEDS for USB1 and USB2 do not seem to work as advertised. I have not implemented any abuse control yet.If there are problems change change SFQ to FQ_CODEL I have not had a lot of traffic to test the QOS for the guest network.Set bandwidth limiting to maximum for private network and bulk for guest.Thus my QOS speed settings areĭownlink speed =. My ISP provides 30Mbps down and 5 Mpbs up. set private network to 172.71.1.1/255.255.255.0 (completely different subnet from .x)Īs explained in the link above, the downlink and uplink speeds must NOT be more than 95% of your ISPs speeds.Configure the virtual interface, then SAVE again.See Guest Network for details and options.īackup the NVRAM beforehand in case something goes wrong, to restore working settings. The Extension Channel of Upper/Lower is also important based on where the DFS/radar channels are with respect to the channel that you have selected. You'll have to see how many other 5 GHz routers are nearby and experiment. The DFS page linked above explains channel width well. Increasing this can increase the speed, but may also increase noise. Channel Width: The smallest width is 20MHz.The "AC/N-mixed" mode has been tested to work. Wireless Network Mode: the webpage GUI lists various possibilities, but some may not work such as "N-only".Basically, the only usable ones are channels 36-48 and 149-165. Channel: even though there are a number of channels that can be used for the 5GHz band, many do not work, as this DFS page explains.SSID: the two interfaces (ath0, ath1) must have different SSIDs.In order to get the 5 GHz band working, all of the following must be set Thus less power will be consumed and less heat generated. If you do not plan to use the 5GHz wifi band, turn it off by adding the command ifconfig ath1 down to the startup commands (webpage: Administration/Commands "Save Startup".Increasing it from 30dBm doesn't seem to have any effect. Comparison of Wireless-AC and Wireless-N technologiesįollow the Atheros/Qualcomm guide for wireless setup.Ĭhoose a non-overlapping channel after scanning with a wireless analyzer.ath1 is the 5GHz band (described as 802.11ac).ath0 is the 2.4 GHz band (802.11n with channel bonding).The WRT1900AC is a dual band router, each band with discrete physical interfaces in the Wireless/Basic Settings webpage. Since the WRTxx00 family uses Marvell chips, the "ifconfig ath0 up" command is used to toggle the wireless. As this is a Marvell unit, builds are customized and do not necessarily correspond to the Broadcom file versions. To see historically available packages, see File Versions. Upgrade firmware: ddwrt-linksys-wrt1900ac-webflash.bin.Initial installation firmware (not needed for later upgrades): factory-to-ddwrt.img.There are two firmware files to download and install.Go to the appropriate model build directory:.See Where do I download firmware? for download links and details.For WRT32x, read WRT32X DD-WRT Installation Procedure Read the standard GUI Installation wiki and Marvell forum Cliff Notes. The WRT1200AC, WRT1900ACS, and WRT3200ACM and other versions are so similar that these instructions will probably also apply to the other versions, but it's not guaranteed. These instructions have only been tested on the Linksys WRT1900AC v1.
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