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Home > Product Overviews > Mesh Systems > SPNMX > Linksys MX4200CF-UK FAQs
Linksys MX4200CF-UK FAQs
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PRODUCT INFORMATION

What is the Linksys MX4200CF-UK?

The Linksys MX4200CF-UK supports the latest Wi-Fi® 6 (802.11ax) standard to deliver lag-free and simultaneous streaming to any device. With the powerful WiFi 6 Mesh coverage, it is designed to deliver gigabit WiFi speeds to every corner of your home, including the backyard and outdoor smart home devices.

 

This model is only for Community Fibre subscribers in the United Kingdom.

How do I know the model number of my Linksys MX4200CF-UK?

The model number is printed on the product label located at the bottom of the node. In the Linksys app and the router's web interface, this is identified as Linksys MX4000 Series.

 

If you have a Linksys SPNMX42CF-UK, the model number will show as SPNMX42 on the product label.

What are the parts of the Linksys MX4200CF-UK?

The Linksys MX4200CF-UK has the following parts:
 
Ports:

 

  • Three gigabit ethernet ports
  • One gigabit internet port
  • Power port (12V, 3A)
  • One USB 3.0 port for external storage support. 
    • The supported formats are as follows:
      • Windows®:  NTFS, FAT32
      • Mac®:  FAT32, and HFS+ (journaled, non-journaled)
    • Supports up to 900mA current draw
    • Supports SMB v2.0
    • UPnP®

 

Buttons and switch:

 

  • Reset button
  • Wi-Fi Protected Setup™ (WPS) button
  • One power switch (sliding)
What are the features of the Linksys MX4200CF-UK?

The router's features are as follows:

 

  • IEEE 802.11ax
  • Up to 4.2 Gbps speed
  • Tri-Band
  • Backward compatible with 802.11 a/b/g/n/ac 
  • Eight spatial streams
  • Nine internal antennas
  • 1.4 GHz quad-core processor
  • Intelligent Mesh™
  • Easy Setup
  • Band steering 
  • Bluetooth® 4.0 Low Energy
  • WiFi security
  • Beamforming
  • Guest Network
  • Parental Controls
  • WPS support
  • Supports Dynamic Host Configuration Protocol (DHCP)
  • Supports Automatic Setup via Auto Configuration Server (ACS)
  • Supports Axiros Dashboard
  • Supports TR-069 / TR-181
  • Coverage of up to 2,700 sq ft per node
What is its warranty period?
For warranty information, contact Community Fibre.
Can I plug my USB hard drive or a printer into its USB port?
The light indicates the different states and activities of your node.

 

Can I plug my USB hard drive or a printer into its USB port?
The Linksys MX4200CF-UK has one USB 3.0 port for a USB storage device. Virtual printing is not supported.
What type of processor does it have?
The Linksys MX4200CF-UK has a 1.4 GHz quad-core processor.
What are the default settings of these products?

The Linksys MX4200CF-UK has the following default settings:
 

  • The default IP address is 192.168.1.1.
    • If the upstream device uses the same IP address, the node will automatically use a different LAN IP address to avoid any conflict. 
  • The default Guest WiFi IP address range is 192.168.3.x.
  • The default administrator password of an unconfigured node is admin. You can use the Linksys app to change the password after setting up the node.
    • Once the node has an internet connection, the default admin password will automatically change to the default WiFi password, which is located on the product label.
  • The default WiFi name and password are found at the bottom of the node. The default WiFi name is CommunityFibre10Gb_xxxxx (where xxxxx represents the last five digits of the node’s MAC address).
  • Each node has a unique pre-assigned WiFi password (located at the bottom of the node).
  • The default Guest WiFi name is CommunityFibre10Gb_xxxxx–guest (where xxxxx represents the last five digits of the node’s MAC address).
  • By default, all nodes have the same default guest password, which is BeMyGuest.
  • The Guest network is disabled by default. It can be enabled using the router's web interface or the Linksys app.
  • DFS support is enabled by default on the 5 GHz radio.
What are the weight and dimensions of the Linksys MX4200CF-UK?
The weight of the Linksys MX4200CF-UK is 0.95 kg (2.15 lb) and its dimensions are 4.45 in x 4.45 in x 9.57 in.

SETUP AND INSTALLATION

What are the requirements for setup?

You will need the following:
 

  • A modem or gateway with an active internet connection by Community Fibre
  • The latest iOS or Android mobile device 
  • The latest version of the Linksys app 
  • Bluetooth (preferred for setup)
Does the Linksys MX4200CF-UK support Auto Configuration Server (ACS)?
Yes. The router supports automatic setup via the Community Fibre’s ACS setup. Once the node is powered ON, plugged into the Community Fibre’s equipment, and detects an internet connection, it will automatically configure itself as the parent node. The light on your node will change from solid purple to blinking white. Once configured as the parent node, the light will turn to solid blue.

 

How do I set it up as a parent node?
Can the 5-Press Setup Method be used in setting up the parent node?
Yes. Once the node is powered ON and the light is solid purple, press the reset button five times within 5 seconds. The light will start blinking white and then turn to solid blue once the setup is complete.
How can I add another node to my existing mesh system?

You will need the Linksys app to add more child nodes to extend your WiFi.


A node that is not from Community Fibre may be added to your network so long as it will be set up as a child node and not as the parent node.

Can my Linksys MX4200CF-UK replace a router?
Yes, you can replace your standard router with the Linksys MX4200CF-UK.
What WiFi security options are supported?

The router supports the following WiFi security modes:

 

 

  • WPA2™/WPA3™ Mixed Personal
  • WPA3 Personal Only
  • WPA2 Personal
  • Open and Enhanced Open
  • Open
If I have a mixed mesh network with other mesh models as child nodes, can I use WPA3 or any of the Enhanced Open security options?

No. Other Linksys routers currently do not support these security options. It is highly recommended to leave the setting to default, otherwise your other child nodes will disconnect from the WiFi. 

How do I add a wired child node to an existing parent node?
You can add a wired child node using the router's web interface.

FIRMWARE UPGRADE

How do I upgrade the router's firmware?
The router will automatically update when a firmware is available.
How do I manually upgrade the router's firmware?

The node only supports firmware from Community Fibre, which is automatically installed. 

 

Manual updates are not supported since firmware updates are approved and will be provided directly by Community Fibre. However, you can click on the Check for Update button on the router's web interface page to see if a new firmware is available for your node.

How do I check a router's current firmware version?
To check the router's current firmware version on the Linksys app, log in to your Linksys cloud account, tap on the menu icon, and go to Network Administration.
Can I use the Linksys MX4200SF-UK firmware to update the Linksys SPNMX42CF-UK?
No, this is not supported. If you attempt to manually update the Linksys SPNMX42CF-UK using Linksys MX4200SF-UK firmware, it will reject the update.

ADVANCED TROUBLESHOOTING

How do I access my router's dashboard?

To learn how to access the dashboard on the Linksys app or the router's web interface, click the links below:    

 

Why can’t I log in to the web interface using “admin” as the password

Once the router has an internet connection, the admin password changes to the default WiFi password printed on the product label.

Why can’t I log in to the local interface using “admin” as a password?
Once the node has an internet connection, the admin password changes to the default WiFi password located on the product label of the Linksys SPNMX42CTF-UK.
What is the External Storage feature?

The External Storage feature allows you to connect an external storage device to its USB port to share an entire hard drive.

 

It features one USB 3.0 port for a storage drive. If you have more than one node, you can connect a USB hard drive to each node.

What file system formats does this router support?

The Linksys MX4200CF-UK supports the following file formats:

 

 

  • Windows: NTFS and FAT32
  • Mac: FAT32 and HFS+ (journaled, non-journaled)
Does the USB storage feature support File Transfer Protocol (FTP)?
No. The USB storage feature doesn't support FTP.
How do I safely eject my hard drive from the node?

To safely remove the storage device, click on Eject on the External Storage page on the router's web interface or the Linksys app.

Can I protect my hard drive from unauthorized access?

Yes. You can do this by enabling Authentication on the node.

 

The username should have a minimum of four and a maximum of 12 alphanumeric characters, while the password should have a minimum of four and a maximum of 50 alphanumeric characters. Both can include valid characters such as an underscore ( _ ) or a dash ( - ). 

Learn more

How do I access the storage device connected to the node?

To access the storage device connected to your node, you need to first identify its IP address. 

How do I reset the node to factory defaults?

To reset your node to its factory defaults, press and hold the reset button until the light on top of the node turns red, fades, and flashes bright red.

 

Make sure that a bright red flash, followed by three to four quick faded red pulses, then another bright red flash occurs before you release the button.

How do I recover my admin password?

You can recover the admin password through the five-digit recovery code printed on the product label at the bottom of the node.

When should I prioritize the internet connection for my device?

On the Priority page, a message will appear recommending that the Device Prioritization feature be turned OFF if the internet speed is 200 Mbps or greater since the bandwidth is sufficient for your devices. It is ideal to prioritize internet connection for your devices when the internet speed is slower than 200 Mbps.

Can I set up the node using the Linksys app?

No. The router supports ACS. This means when the node is connected from the internet port to the Community Fibre equipment, it will begin to self-configure.

 

DO NOT try to set up the parent node with the Linksys app while the node is going through the ACS setup because the Linksys app will not detect the node. Wait until the node self-configures and the status light is solid blue can you only then use the Linksys app to manage your new Linksys network.

 

Learn more

Can I add non-Community Fibre child nodes?

They will work depending on the Community Fibre firmware features. Contact Community Fibre for more information.

My Linksys mesh router isn't working with my Community Fibre's 5G router. What should I do?

For the Linksys mesh router to work with a 5G router, Community Fibre must provide a 5G router with an ethernet port for connection to the parent node.

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