How to enable powershell remoting in Powershell V3?

I'm running powershell 3.0 in Windows 7 and I'm connected to a domain.

These are the logs I get when I run Enable-PSRemoting:

WinRM has been updated to receive requests.
WinRM service type changed successfully.

Set-WSManQuickConfig : <f:WSManFault xmlns:f="http://schemas.microsoft.com/wbem/wsman/1/wsmanfault" Code="2"
Machine="localhost"><f:Message><f:ProviderFault provider="Config provider" path="%systemroot%\system32\WsmSvc.dll"><f:WSManFault
xmlns:f="http://schemas.microsoft.com/wbem/wsman/1/wsmanfault" Code="2" Machine="mycomputername.mydomainname"><f:Message>Unable to check the sta
the firewall. </f:Message></f:WSManFault></f:ProviderFault></f:Message></f:WSManFault>
At line:1 char:1+ Set-WSManQuickConfig+ ~~~~~~~~~~~~~~~~~~~~+ CategoryInfo          : InvalidOperation: (:) [Set-WSManQuickConfig], InvalidOperationException+ FullyQualifiedErrorId : WsManError,Microsoft.WSMan.Management.SetWSManQuickConfigCommand

Thanks in advance !