Unable to use EMS after Exchange 2013 CU1 Upgrade

Hi Everyone

After upgrading Exchange 2013 to CU1, I keep receiving the following error when trying to open the EMS.

VERBOSE: Connecting to EXCHANGE.<internaldomain>.
New-PSSession : [exchange.<internaldomain>] Connecting to remote server exchange.<internaldomain> failed with the
following error message : The WinRM client received an HTTP status code of 303 from the remote WS-Management service.
For more information, see the about_Remote_Troubleshooting Help topic.
At line:1 char:1
+ New-PSSession -ConnectionURI "$connectionUri" -ConfigurationName Microsoft.Excha ...
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : OpenError: (System.Manageme....RemoteRunspace:RemoteRunspace) [New-PSSession], PSRemotingTransportException
    + FullyQualifiedErrorId : -2144108273,PSSessionOpenFailed

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I also get the following when trying to open the Toolbox

FX:{714FA079-DC14-470f-851C-B7EAAA4177C1}
Type is not resolved for member 'Microsoft.Exchange.Configuration.MonadDataProvider.MonadDataAdapterInvocationException,Microsoft.Exchange.Configuration.ObjectModel, Version=15.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35'.

at Microsoft.ManagementConsole.Internal.IMessageClient.ProcessRequest(Request request)
   at Microsoft.ManagementConsole.Executive.RequestStatus.BeginRequest(IMessageClient messageClient, RequestInfo requestInfo)
   at Microsoft.ManagementConsole.Executive.SnapInRequestOperation.ProcessRequest()
   at Microsoft.ManagementConsole.Executive.Operation.OnThreadTransfer(SimpleOperationCallback callback)

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Any help will be greatly appreciated.

Thank you