org.openqa.selenium.remote.SessionNotFoundException: Unexpected error launching Internet Explorer. Protected Mode settings are not the same for all zones. Enable Protected Mode must be set to the same value (enabled or disabled) for all zones. (WARNING: The server did not provide any stacktrace information)

[TestNG] Running:
  C:\Users\tester\AppData\Local\Temp\testng-eclipse-520368244\testng-customsuite.xml
Started InternetExplorerDriver server (32-bit)
2.42.0.0
Listening on port 30903
FAILED CONFIGURATION: @BeforeMethod beforeMethod
org.openqa.selenium.remote.SessionNotFoundException: Unexpected error launching Internet Explorer. Protected Mode settings are not the same for all zones. Enable Protected Mode must be set to the same value (enabled or disabled) for all zones. (WARNING: The server did not provide any stacktrace information)
Command duration or timeout: 1.69 seconds
Build info: version: '2.43.1', revision: '5163bce', time: '2014-06-10 19:27:58'

Driver info: org.openqa.selenium.ie.InternetExplorerDriver
 at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
 at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source)
 at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source)
.
.
.

The protected mode setting in internet explorer must be enabled for all zones listed under the security tab on Internet Options menu.
Correcting it to have the setting enables would solve the above reported issue.