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Linksys Support

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

FAQs are frequently asked product questions. Select Downloads for user guides and firmware updates.

  • Overview
  • Guide Me
  • FAQs
  • Frequently asked questions

    Frequently Asked Questions for various Operating Systems

  • Forums
  • 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 which of the power...

    • 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....

    • 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...

    • 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...

    • Changing router channel

      Hi running8 and welcome to the forums! Please click the link for instructions: Setting-Up the Wireless Settings...

    • 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...

    • BEFCMU10

      I have a BEFCMU10 version 2.0 cable modem. My provider Insight Broadband has recently boosted their internet speeds. But...

    • 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...

    • BEFCMU10 versus CM100

      Hello everyone! Which cable modem is better; the Linksys BEFCMU10 Cable Modem or the Linksys CM100 Cable Modem? Than...

    • WAG320N Static Route

      Again: the WAG320N does not support this kind of setup. It does not allow you to define directly delivered static routes...

    • 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...

    • 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...

    • Cannot renew ip address

      Un-install the adapter software/linksys monitor and install only the drivers... Remove the Linksys Adapter and un-install...

    • 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
  • Downloads

    Please ensure you select the correct hardware version as not all downloads are compatible with your device.

    Where's my model number?

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    How to find your model or serial number

  • Videos
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  • Live Chat

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    Please use our forums
    and Knowledgebase,
    and check back later
    for Live Chat availability

Forums


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