Linksys MR8300

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The Linksys MR8300 is very close to the EA8300, so basic infos from EA8300 should also be relevant for the MR8300.

The Linksys MR8300 is a MU-MIMO Tri-Band WiFi router, which has one 2.4GHz and two 5GHz WiFi Interfaces, making it an interesting choice for wireless backhaul or repeater applications. The radios support MCS 0-9 (up through 256 QAM) for devices and paths that are compatible with those high-density modulations.

Note: The first 5 GHz radio (IPQ4019) is limited to ch. 64 and below. The second 5 GHz radio (QCA9888), is limited to ch. 100 and above. This is consistent with OEM firmware and is a result of the ART data and the data in the OEM firmware's cal data. This is perhaps due to RF design optimization and/or interoperation with 2.4 GHz, such as the two, shared antennas.

It has four 1G LAN ports, one 1G WAN port, a USB 3.0 interface and four external antennas.

It is powered by an external 12V, 2A power adapter and supports DFS and 256QAM.is

FIXME Any text with a light background (like this one) provides instructions for creating the Details Page. When you have filled in correct/useful information (instead of any template that's there) remove the instructions, as well as the <WRAP> that encloses it.

Generic Router

ModelVersionSoCCPU MHzFlash MBRAM MBWLAN HardwareWLAN2.4WLAN5.0100M portsGbit portsModemUSB
MR8300Qualcomm IPQ4019717256NAND512Qualcomm Atheros QCA4019, Qualcomm Atheros QCA9888b/g/na/n/ac-5-1x 3.0

The original version should be considered as v1. As of 2021, a version v1.1 is shipped. It also works with the same OpenWrt files.

First method

  1. Download a factory.bin OpenWrt image as shown above
  2. It is suggested to disconnect the WAN link to avoid the router to self download the latest firmware form Linksys website.
  3. In OEM firmware, go to connectivty settings. You will see no manual downloading of firmware. At the bottom, click on CA next to the legal informations. You will see a manual update section now.
  4. Flash the factory.bin OpenWrt image.

Second method

  1. You can also go directly to this url https://ip-of-router/fwupdate.html (Typically 192.168.1.1)
  2. Flash the factory.bin OpenWrt image via the OEM GUI. This has been tested successfully with OEM firmware 1.1.7 (untested with above).

Official documentation from Linksys at https://www.linksys.com/us/support-article?articleNum=274497

FIXME Find out flash layout, then add the flash layout table here (copy, paste, modify the example).

Please check out the article Flash layout. It contains examples and explanations that describe how to document the flash layout.

FIXME The instructions below are for Broadcom devices and only serve as an example.
Remove / modify them if they do not apply to this particular device!

This section deals with

  • How you install OpenWrt from a device freshly opened
  • The steps required such as reset to factory defaults if the device has already been configured

Note: Reset router to factory defaults if it has been previously configured.

  • Browse to http://192.168.1.1/Upgrade.asp
  • Upload .bin file to router
  • Wait for it to reboot
  • Telnet to 192.168.1.1 and set a root password, or browse to http://192.168.1.1 if LuCI is installed.

Specific values needed for tftp

FIXME Enter values for “FILL-IN” below

Bootloader tftp server IPv4 address FILL-IN
Bootloader MAC address (special) FILL-IN
Firmware tftp image Latest OpenWrt release (NOTE: Name must contain “tftp”)
TFTP transfer window FILL-IN seconds
TFTP window start approximately FILL-IN seconds after power on
TFTP client required IP address FILL-IN

generic.sysupgrade

FIXME These are generic instructions. Update with your router's specifics.

  • Browse to http://192.168.1.1/cgi-bin/luci/mini/system/upgrade/ LuCI Upgrade URL
  • Upload image file for sysupgrade to LuCI
  • Wait for reboot

If you don't have a GUI (LuCI) available, you can alternatively upgrade via the command line. There are two command line methods for upgrading:

  • sysupgrade
  • mtd

Note: It is important that you put the firmware image into the ramdisk (/tmp) before you start flashing.

sysupgrade

  • Login as root via SSH on 192.168.1.1, then enter the following commands:
cd /tmp
wget http://downloads.openwrt.org/snapshots/trunk/XXX/xxx.abc
sysupgrade /tmp/xxx.abc

mtd

If sysupgrade does not support this router, use mtd.

  • Login as root via SSH on 192.168.1.1, then enter the following commands:
cd /tmp
wget http://downloads.openwrt.org/snapshots/trunk/XXX/xxx.abc
mtd write /tmp/xxx.abc linux && reboot

Basic configuration After flashing, proceed with this.
Set up your Internet connection, configure wireless, configure USB port, etc.

FIXME Please fill in real values for this device, then remove the EXAMPLEs

The default network configuration is:

Interface Name Description Default configuration
br-lan EXAMPLE LAN & WiFi EXAMPLE 192.168.1.1/24
vlan0 (eth0.0) EXAMPLE LAN ports (1 to 4) EXAMPLE None
vlan1 (eth0.1) EXAMPLE WAN port EXAMPLE DHCP
wl0 EXAMPLE WiFi EXAMPLE Disabled

FIXME Please fill in real values for this device, then remove the EXAMPLEs

Numbers 0-3 are Ports 1-4 as labeled on the unit, number 4 is the Internet (WAN) on the unit, 5 is the internal connection to the router itself. Don't be fooled: Port 1 on the unit is number 3 when configuring VLANs. vlan0 = eth0.0, vlan1 = eth0.1 and so on.

Port Switch port
Internet (WAN) EXAMPLE 4
LAN 1 EXAMPLE 3
LAN 2 EXAMPLE 2
LAN 3 EXAMPLE 1
LAN 4 EXAMPLE 0

hardware.button on howto use and configure the hardware button(s). Here, we merely name the buttons, so we can use them in the above Howto.

FIXME Please fill in real values for this device, then remove the EXAMPLEs

The Linksys MR8300 has the following buttons:

BUTTON Event
EXAMPLE Reset reset
EXAMPLE Secure Easy Setup ses
EXAMPLE No buttons at all. -
General
Brand Linksys
Model MR8300
Versions
Device Type WiFi Router
Availability Available 2020
Comments - general
OpenWrt Support
Supported Since Commit https://git.openwrt.org/?p=openwrt/openwrt.git;a=commit;h=a9071d02b5ab11fbd73ea42076a09f2fd8136517
Supported Since Release 21.02.0
Supported Current Release 21.02.0
Unsupported
Hardware
Bootloader U-Boot
Target ipq40xx
System-On-Chip Qualcomm IPQ4019
CPU MHz 717
Flash MB 256NAND
RAM MB 512
Network
Ethernet 100M ports -
Ethernet Gbit ports 5
Switch Qualcomm Atheros QCA8075
Modem -
VLAN Yes
Comments - network ports
Wireless
WLAN 2.4GHz b/g/n
WLAN 5.0GHz a/n/ac
WLAN Hardware Qualcomm Atheros QCA4019, Qualcomm Atheros QCA9888
Detachable Antennas -
Comments - WLAN
Interfaces
USB ports 1x 3.0
SATA ports -
Serial Yes
JTAG ¿
Comments - USB & SATA ports
Misc
LED count 5
Button count 2
Power supply 12 VDC, 2.0 A
Links
Forum Topic URL
WikiDevi URL https://wikidevi.wi-cat.ru/Linksys_MR8300
OEM device homepage URL https://www.linksys.com/us/p/P-MR8300/
Firmware OEM Stock URL https://www.linksys.com/us/support-article?articleNum=293921
Firmware OpenWrt Install URL http://downloads.openwrt.org/releases/21.02.0/targets/ipq40xx/generic/openwrt-21.02.0-ipq40xx-generic-linksys_mr8300-squashfs-factory.bin
Firmware OpenWrt Upgrade URL http://downloads.openwrt.org/releases/21.02.0/targets/ipq40xx/generic/openwrt-21.02.0-ipq40xx-generic-linksys_mr8300-squashfs-sysupgrade.bin
Edit the underlying data View/Edit data

Front:
Insert photo of front of the casing

Back:
Insert photo of back of the casing

Backside label:
Insert photo of backside label

Note: This will void your warranty!

FIXME Describe what needs to be done to open the device, e.g. remove rubber feet, adhesive labels, screws, …

  • To remove the cover and open the device, do a/b/c

Main PCB:
Insert photo of PCB

port.serial general information about the serial port, serial port cable, etc.

How to connect to the Serial Port of this specific device:
Insert photo of PCB with markings for serial port

FIXME Replace EXAMPLE by real values.

Serial connection parameters
for Linksys MR8300 @@Version@@
EXAMPLE 115200, 8N1

port.jtag general information about the JTAG port, JTAG cable, etc.

How to connect to the JTAG Port of this specific device:
Insert photo of PCB with markings for JTAG port

None so far.

COPY HERE THE BOOTLOG WITH THE ORIGINAL FIRMWARE


COPY HERE THE BOOTLOG ONCE OPENWRT IS INSTALLED AND RUNNING


Space for additional notes, links to forum threads or other resources.

FIXME Add tags below, then remove this fixme.

How to add tags

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  • Last modified: 2021/10/07 19:16
  • by badulesia