The IOGEAR USB-C CAC Reader is a TAA compliant USB Common Access Card Reader for military, government and private sector workers who need everyday. Is your CAC reader Mac friendly? Visit the USB Readers page to verify the CAC reader you.

Works on the following IOGear CAC reader models:

GSR202, GSR202V, GSR203, & GSR205 (USB type C reader)

1. Information

Iogear Cac Reader Not Working Mac

Some IOGear CAC readers have a firmware version that will not work on a Mac (0x9540), this page will show you how to change it to 0x9520, which will work on your Mac using a program called EepromMP.

2. This procedure must be completed using a Windows computer (or Bootcamped Mac), it will not work using a virtual version of Windows (i.e. Parallels, VMware, or Virtual Box)

2.1 Install the AU9540_V1.7.2.0 driver (from the CD in the box), then plug in the GSR202, GSR202V, GSR203, or GSR205 to your Windows computer.You may also download it from: http://www.iogear.com/support/dm/driver/GSR202

2.2 Double click EepromMP.exe found at: http://militarycac.com/CACDrivers/iogear/AU9540_EEPROM.zipAU9540 reader will look like Figure 1. Click the Setting button (DO NOT insert your CAC in the reader).

Figure 1

2.3 Match your screen to the information below completely, and then click OK to go back to the main page. (Figure 2)

Figure 2

2.4 Click Write Eeprom to program the external EEPROM. (Figure 3)

Figure 3

2.5 When write Eeprom is finished, a SUCCESS message will be displayed (Figure 4)

(DO NOT insert your CAC). After the task is finished, click Cancel to quit the program

Figure 4

2.6 Unplug the reader, and then plug it back into your computer (very important step)!

2.7 You are finished.Try your CAC reader on your Mac now.

If you have any problems with your reader, please contact IOGear. http://iogear.custhelp.com

Installation Steps

Step 1: Obtain a CAC Reader

Step 2:CAC Reader driver / Video

Step 3:DoD Certificates

Step 4:ActivClient

Step 4a:Update ActivClient

Step 5:IE adjustments/Video

Log into a CAC enabled website now

Page Quick Links:

Firmware Update for SCR-331

Verify SmartCard Service started

Start Smart Card Service PDFs

Updating a CAC Driver

Plug in your CAC reader NOW

NOTE: Please check and make sure your CAC reader installed BEFORE you attempt to follow the driver installation instructions below. Most of the time, the New hardware wizard will install the CAC reader automatically, negating the need for you to install the driver manually.

To Verify whether your driver did or did not install, follow these instructions:

Plug your CAC reader into your computer before proceeding

Windows 10: Right click the Windows logo (lower left corner of your screen). Click System, select Device Manager link (upper left corner of the screen), scroll down to Smart card readers, select the little triangle next to it to open it up. If your smart card reader is listed, go to the next step of installing the DoD certificates.

Windows 8.1: Right click Computer, select Properties, Device Manager link (upper left corner of the screen), scroll down to Smart card readers, select the little triangle next to it to open it up. If your smart card reader is listed, go to the next step of installing the DoD certificates. NOTE: If you don't see it, you can also click Start, In the Start Search line type in: devmgmt.msc. (For Windows 8.1 users, you'll right click Start).

If it did not install correctly... Try this first: Go to Device Manager (Instructions are above), scroll down to Smart Card readers, right click the CAC reader that shows up below Smart Card Readers. It can also show up under unknown devices. Select Uninstall. It will give you a message. Once it is uninstalled, unplug the reader from your computer. Wait a few moments, then plug it back in. It 'should' start to install itself. If that doesn't work, keep reading for other ideas below.

IF you do not see Smart card readers when checking, THEN follow along with the steps below.

To install a driver onto your computer for a CAC reader, you need to first download the correct driver for the hardware you purchased, I have drivers for the most common USB Readers, Keyboard, laptop, & desktop card readers

PROCEED TO STEP 3 ONCE YOU'VE COMPLETED YOUR VERIFICATION OR INSTALLATION

Unzipping - the driver

Windows 10 or 8.1 - Save the zip file to a location of your choosing. Once you have the zip file downloaded, open the zip file (Windows built in zipping program). Copy the folder inside to a new folder. It will unzip the contents, (this is the folder you will need when you are doing the steps below). You can also use the Extract All Files button (on the left under Folder Tasks, under File, Extract All). It will then ask where you want to save the file. I recommend placing a backslash ( ) at the end of the location on the screen.

WinZip- Use the Extract button. It will ask you where you want to save the extracted files to, I recommend your desktop. Click the desktop icon on the left. Push the little yellow folder in the upper right corner of this active window. It will prompt you for a name for the folder (type in CAC Driver). Hit OK, then select Extract (lower right corner of this window). You should now see your new folder on your desktop to open up. Keep this for a later step.

Updating the Driver - Example is for an SCR-331

Windows 10 & 8.1 - Right Click Computer, Select Properties

Click the Device Manager link (on the left side of your screen)

Select the triangle next to Smart Card Readers

Right click the SCRx31 USB Reader, select Update Driver software

Browse my computer... Select Browse, then desktop (or wherever you made the folder)

NOTE: One person had to select 'Search automatically for updated driver software' (This is very rare)

Select the folder (if using the firmware update driver below, stop

Iogear Cac Reader Mac