ADB does not see connected Samsung S4 I'm on Windows 7 and have developer options including USB Debugging enabled. I have opened Kies and it recognizes the S4. However when I try adb devices, nothing to be found. It works perfectly fine with my Nexus 10.

I've also tried adb kill-server, adb start-server and then adb devices to no avail.

Anyone else have this issue?
Re-install these official Samsung drivers.


Uninstall current drivers by going into Device Manager. Make sure to check off the delete drivers option if given. 
Reboot. 
Reinstall the given drivers above without connecting the Galaxy S4
Reboot.
Go ahead and connect phone and verify that in device manager Samsung ADB Device or equivalent is shown. 
If it shows an exclamation mark on it or other problem, then in device manager right click on the driver, update, let me choose from a list and choose the correct android adb driver.