Cisco Modem / ISDN Drivers Download

by Cisco Systems Inc.

Free Cisco Drivers Download

After you upgrade your computer to Windows 10, if your Cisco Modem / ISDN Drivers are not working, you can fix the problem by updating the drivers. It is possible that your Modem / ISDN driver is not compatible with the newer version of Windows.

How to Update Device Drivers

There are two ways to update drivers.

Option 1 (Recommended): Update drivers automatically - Novice computer users can update drivers using trusted software in just a few mouse clicks. Automatic driver updates are fast, efficient and elimate all the guesswork. Your old drivers can even be backed up and restored in case any problems occur.


Option 2: Update drivers manually - Find the correct driver for your Modem / ISDN and operating system, then install it by following the step by step instructions below. You’ll need some computer skills to use this method.

Option 1: Update drivers automatically

The Driver Update Utility for Cisco devices is intelligent software which automatically recognizes your computer’s operating system and Modem / ISDN model and finds the most up-to-date drivers for it. There is no risk of installing the wrong driver. The Driver Update Utility downloads and installs your drivers quickly and easily.

You can scan for driver updates automatically with the FREE version of the Driver Update Utility for Cisco, and complete all necessary driver updates using the premium version.

Tech Tip: The Driver Update Utility for Cisco will back up your current drivers for you. If you encounter any problems while updating your drivers, you can use this feature to restore your previous drivers and configuration settings.

  1. Download the Driver Update Utility for Cisco.

  2. Double-click on the program to run it. It will then scan your computer and identify any problem drivers. You will see a results page similar to the one below:
    Cisco Modem / ISDN Driver Update Utility

  3. Click the Update Driver button next to your driver. The correct version will be downloaded and installed automatically. Or, you can click the Update Drivers button at the bottom to automatically download and install the correct version of all the drivers that are missing or out-of-date on your system.

Option 2: Update drivers manually

To find the latest driver, including Windows 10 drivers, choose from our list of most popular Cisco Modem / ISDN downloads or search our driver archive for the driver that fits your specific Modem / ISDN model and your PC’s operating system.

Find Cisco Modem / ISDN Device Drivers by Model Name or Number

If you cannot find the right driver for your device, you can request the driver. We will find it for you. Or, try the automatic option instead.

Tech Tip: If you are having trouble finding the right driver update, use the Cisco Modem / ISDN Driver Update Utility. It is software which finds, downloads and istalls the correct driver for you - automatically.

After downloading your driver update, you will need to install it. Driver updates come in a variety of file formats with different file extensions. For example, you may have downloaded an EXE, INF, ZIP, or SYS file. Each file type has a slighty different installation procedure to follow. Visit our Driver Support Page to watch helpful step-by-step videos on how to install drivers based on their file extension.

How to Install Drivers

After you have found the right driver, follow these simple instructions to install it.

  1. Power off your device.
  2. Disconnect the device from your computer.
  3. Reconnect the device and power it on.
  4. Double click the driver download to extract it.
  5. If a language option is given, select your language.
  6. Follow the directions on the installation program screen.
  7. Reboot your computer.

Driver Updates for Popular Cisco Modem / ISDN Models

Model Rating Filename Size Total
Cisco Modem / ISDN Driver Update Utility
dfsetup.exe269 KB188,137 Free Download >>
DPC2100 Driver
DPW939_Install... 128.zip12.3 MB2,493 Free Download >>
DPC2100 DriverEPC2203 Driver
2008_Drivers_Vista_XP.zip24.1 MB1,292 Free Download >>
EPC2100 Driver n/a4005527.pdf633.6 KB5 Free Download >>
EPC2100 DriverEPC2203 Drivern/aWebSTAR_100_Se... 2.3.zip77.0 KB48 Free Download >>
DPQ2160 Driver n/aCable_Modem_In... _CD.zip169.7 MB115 Free Download >>
DPQ2160 Driver n/a4028103-new.pdf846.7 KB334 Free Download >>
Cisco INIC (PCMCIA) Driver n/aCisco20x.zip1.2 MB108 Free Download >>
675 Driver
675cbosv2.4.1.exe931.8 KB268 Free Download >>
678 Driver
678CAPcbos2.4.1.exe943.1 KB197 Free Download >>
678 Driver n/a678DMTcbos2.4.1.exe941.6 KB209 Free Download >>
cisco 20x isdn line adapter Driver n/acisco20x.zip1.2 MB128 Free Download >>
DPC2100 Driver
WebSTAR_100_Se... 2.3.zip77.0 KB136 Free Download >>
DPC2100 Driver n/aWebSTAR_300_Se... 2.3.zip77.0 KB48 Free Download >>
DPC2100 Driver n/a4005527.pdf633.6 KB31 Free Download >>
EPC2100 Driver n/a2008_Drivers_Vista_XP.zip24.1 MB268 Free Download >>
DPQ2160 DriverEPC2100 DriverEPC2203 Driver
DPW939_Install... 128.zip12.3 MB379 Free Download >>
EPC2100 Driver n/aDPW941_Install... 128.zip14.5 MB18 Free Download >>
EPC2100 Driver n/aWebSTAR_2000_S... 2.3.zip161.9 KB40 Free Download >>
EPC2100 Driver
WebSTAR_300_Se... 2.3.zip77.0 KB68 Free Download >>
DPC2100 DriverDPQ2160 Drivern/aDPW941_Install... 128.zip14.5 MB44 Free Download >>
DPC2100 DriverEPC2203 Drivern/aWebSTAR_2000_S... 2.3.zip161.9 KB143 Free Download >>
Intel(R) PRO/DSL 2100 Modem - PPP Driver
Cisco_605_2K.zip292.6 KB679 Free Download >>
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