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Broadband Etherfast® Cable Modem (BEFCMU10)
• Built-in 10/1000 ethernet port and USB connection
• CableLabs Certified DOCSIS 2.0 and 1.1
• High-speed ADSL Modem gives you a fast, "Always On" connection to the Internet
Support Sections
Guide Me provides step-by-step solutions and troubleshooting tips. FAQs are frequently asked product questions. Select Downloads for user guides and firmware updates.
- Overview
- Guide Me
- FAQs
- Product Information
- Finding the model and the serial number of your Linksys device
- Setting up your gateway
- Hardware Installation for Connection to your Broadband Modem
- Checking if the BEFCMU10 Cable Modem is Properly Installed
- Changing the Linksys Cable Gateway’s LAN IP Address
- Checking the computer’s connection to the Internet
- Downloading the latest drivers or firmware from Linksys support site
- Installing the Cable Modem on Windows XP
- Encountering Problems Installing the Cable Modem
- Devices that can be connected on a cable modem
- Advanced Troubleshooting
- Difference between Port Forwarding and Port Triggering
- Blinking Online LED on a cable modem
- Encountering intermittent wired connection using a Cable Modem
- Encountering problems getting online using a cable modem
- Resetting the cable modem to factory default
- Blinking Cable Light on a Cable Modem or Cable Gateway
- Product Information
- Finding the model and the serial number of your Linksys device
- Setting up your gateway
- Hardware Installation for Connection to your Broadband Modem
- Checking if the BEFCMU10 Cable Modem is Properly Installed
- Changing the Linksys Cable Gateway’s LAN IP Address
- Checking the computer’s connection to the Internet
- Downloading the latest drivers or firmware from Linksys support site
- Encountering Problems Installing the Cable Modem
- Devices that can be connected on a cable modem
- Advanced Troubleshooting
- Difference between Port Forwarding and Port Triggering
- Blinking Online LED on a cable modem
- Encountering intermittent wired connection using a Cable Modem
- Encountering problems getting online using a cable modem
- Resetting the cable modem to factory default
- Blinking Cable Light on a Cable Modem or Cable Gateway
- Forums
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BEFCMU10 ver.3 power adapter
Busting it back out and getting back to using cable modem instead of DSL. problem is, I have no idea which of the power...
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BEFCMU10 goes off line then back on
I have a BEFCMU10 v1 that has been misbehaving recently. It will go off line losing contact with the router and the Internet....
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How to determine version number of BEFCMU10
I'm looking to buy a modem off ebay and the guy can't find the version #. Seeing how I've never seen a BEFCMU10, I assumed...
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Linksys CM100
I recently got a new Linksys CM100 cable modem. Is it advisable to have the cable modem standing or does it need to lie...
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Changing router channel
Hi running8 and welcome to the forums! Please click the link for instructions: Setting-Up the Wireless Settings...
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Linksys Hardware Vs the ISP
I'm having lots of Problems with my cable internet service charter tech that came over saw my stack of Linksys gear...
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BEFCMU10
I have a BEFCMU10 version 2.0 cable modem. My provider Insight Broadband has recently boosted their internet speeds. But...
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Can't connect to NOAA.gov, but OK on every other site...WRT54Gv6
Faulty COMCAST DNS server.... COMCAST got it fixed!!! I could not get an intelligent tech support person to escalate NOAA’s...
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BEFCMU10 versus CM100
Hello everyone! Which cable modem is better; the Linksys BEFCMU10 Cable Modem or the Linksys CM100 Cable Modem? Than...
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WAG320N Static Route
Again: the WAG320N does not support this kind of setup. It does not allow you to define directly delivered static routes...
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E4200 Static IP Issues
Haha! Oh man! Late nights just aren't good. I realized my error in the morning. I had previous used the Advanced Routing...
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IP address? DHCP?
The AM200 is router with integrated modem. That's the main problem. I would recommend only to use a single router.Two recommended...
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Cannot renew ip address
Un-install the adapter software/linksys monitor and install only the drivers... Remove the Linksys Adapter and un-install...
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Adding new computer to existing network
You have to be on the same workgroup.You have to turn on Network Discovery and file sharing in your new computer.
- Downloads
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Step 1:
Flip the device over.Step 2:
You should find the model number on the sticker underneath the device. Please see the example.Step 3:
Take note of the exact model number and version of your product. The serial number is located right underneath the model number. In this example, the model number of the device is M20.NOTE: The images may vary depending on the exact model number of your Linksys Product. If there is no version number beside the model number it means that is version 1.
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E-Series
Step 1:
Look at the top of the device.Step 2:
The model number should be found under the CISCO logo.NOTE: The images may vary depending on the exact model number of your Linksys product. The serial number is located underneath the device. If there is no version number beside the model number, it means that it is a version 1.
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Blue and Black
Step 1:
Flip the device over.Step 2:
You should find the model number on the sticker underneath the device. Please see the example.Step 3:
Take note of the exact model number and version of your Linksys device. The serial number is located right underneath the model number. In this example, the model number of the device is WRT54G ver 6.NOTE: The images may vary depending on the exact model number of your Linksys Product. If there is no version number beside the model number it means that is version 1.
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Silver
Step 1:
Look at the side panel of the router when it is standing vertically.Step 2:
You should find the model number on the sticker. Please see the example.NOTE: The images may vary depending on the exact model number of your Linksys Product. If there is no version number beside the model number it means that is version 1.
Step 3:
Take note of the exact model number and version of your Linksys device. The serial number is located right underneath the model number. In this example, the model number is WRT54GX4.
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Wireless Routers with Voice Ports
Step 1:
Look at the side panel of the router when it is standing vertically.Step 2:
You should find the model number on the sticker. Please see the example.NOTE: The images may vary depending on the exact model number of your Linksys Product. If there is no version number beside the model number it means that is version 1.
Step 3:
Take note of the exact model number and version of your Linksys device. The serial number is located right underneath the model number. In this example, the model number is WRTP54G V.2.
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Wireless VPN Routers
Step 1:
Look at the side panel of the router when it is standing vertically.Step 2:
You should find the model number on the sticker. Please see the example.NOTE: The images may vary depending on the exact model number of your Linksys Product. If there is no version number beside the model number it means that is version 1.
Step 3:
Take note of the exact model number and version of your Linksys device. The serial number is located right underneath the model number. In this example, the model number is WRV54G.
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Blue and Black
Step 1:
Flip the device over.Step 2:
You should find the model number on the sticker underneath the device. Please see the example.Step 3:
Take note of the exact model number and version of your Linksys device. The serial number is located right underneath the model number. In this example, the model number of the device is BEFSR41 ver.4.1.NOTE: The images may vary depending on the exact model number of your Linksys Product. If there is no version number beside the model number it means that is version 1.
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PC Card or Card Bus
Step 1:
If your adapter is already connected to the computer, shut down your computer and remove the adapter.Step 2:
You should find the model number on the device itself. Please see the example.Step 3:
Take note of the exact model number and version of your Linksys device. The serial number is located right underneath the model number. In this example, the model number is WPC54G ver.7NOTE: The images may vary depending on the exact model number of your Linksys Product. If there is no version number beside the model number it means that is version 1.
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PCI Adapter
Step 1:
If your adapter is already connected to the computer, shut down your computer and remove the adapter.Step 2:
You should find the model number on the device itself. Please see the example.NOTE: The images may vary depending on the exact model number of your Linksys Product. If there is no version number beside the model number it means that is version 1.
Step 3:
Take note of the exact model number and version of your Linksys device. The serial number is located right underneath the model number. In this example, the model number is WMP54G ver.4.1.
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USB Wireless Adapter
Step 1:
Look for the sticker around the device.Step 2:
You should find the model number on the sticker. Please see the example.NOTE: The images may vary depending on the exact model number of your Linksys Product. If there is no version number beside the model number it means that is version 1.
Step 3:
Take note of the exact model number and version of your Linksys device. The serial number is located right underneath the model number. In this example, the model number is WUSB54G ver.4.
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PCI Adapters
Step 1:
If your adapter is already connected to the computer, shut down your computer and remove the adapter.Step 2:
You should find the model number on the device itself. Please take note of the exact model number and version. Please see the example.Step 3:
Take note of the exact model number and version of your Linksys device. The serial number is located right underneath the model number.NOTE: The images may vary depending on the exact model number of your Linksys Product. If there is no version number beside the model number it means that is version 1.
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SE Switches
Step 1:
Look at the top of the device.Step 2:
The model number should be found under the CISCO logo.Step 3:
Take note of the exact model number and version of your product. The serial number is located underneath the device. In this example, the model number of the device is SE1500.NOTE: The images may vary depending on the exact model number of your Linksys product. If there is no version number beside the model number, it means that it is a version 1.
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Step 1:
Flip the device over.Step 2:
You should find the model number on the sticker underneath the device. Please see the example.Step 3:
Take note of the exact model number and version of your Linksys device. The serial number is located right underneath the model number.
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Step 1:
Flip the device over.Step 2:
You should find the model number on the sticker underneath the device. Please see the example.Step 3:
Take note of the exact model number and version of your Linksys device. The serial number is located right underneath the model number. In this example, the model number of the device is NMH410.NOTE: The images may vary depending on the exact model number of your Linksys Product. If there is no version number beside the model number it means that is version 1.
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Step 1:
Flip the device over.Step 2:
You should find the model number on the sticker underneath the device. Please see the example.Step 3:
Take note of the exact model number and version of your Linksys device. The serial number is located right underneath the model number. In this example, the model number of the device is DMC250.NOTE: The images may vary depending on the exact model number of your Linksys Product. If there is no version number beside the model number it means that is version 1.
- Videos
- Live Chat
Guide Me
Get quick solutions and troubleshooting tips.
Hot Topics
Frequently asked questions
Frequently Asked Questions for various Operating Systems
Forums
Downloads
Please ensure you select the correct hardware version as not all downloads are compatible with your device.
Free Software notice for certain products, click here.
Driver
07/12/2007
Ver.2.1
Download
73.1 KB(Driver)
Release Notes
09/09/2005
Ver.(Win 98 Only)
Download
37.3 KB(Driver)
Release Notes
Driver
11/11/2003
Ver.1.10
Download
28.4 KB(Driver)
Driver
07/01/2002
Ver.1.7
Download
29 KB(Driver)
Driver
07/01/2002
Ver.1.7
Download
29 KB(Driver)
How to find your model or serial number
To find model or serial numbers, choose your device below.
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MEDIA HUB
WIRELESS HOME AUDIO
Forums
-
BEFCMU10 ver.3 power adapter
Busting it back out and getting back to using cable modem instead of DSL. problem is, I have no idea...
-
BEFCMU10 goes off line then back on
I have a BEFCMU10 v1 that has been misbehaving recently. It will go off line losing contact with the...
-
How to determine version number of BEFCMU10
I'm looking to buy a modem off ebay and the guy can't find the version #. Seeing how I've never seen...
Guide Me
Get quick solutions and troubleshooting tips.
