OMA error ID 1503 MSExchangeOMA

my mobile devices will not sync anymore. When i try http:\\mysite.com\oma, i get the login pop-up and then i get a system error. OWA works fine. Here's how it happenned (my thoughts):

- i moved WSUS to another server few weeks ago.
- since then, monitoring and reports stopped working.
- i uninstalled and re-installed monitoring on the server
- OMA stopped working
- MSDE SP4 update popped-up. I re-installed it.
- Run monitoring and report wizard. Everything OK except OMA.

Is there a wizard i can run to reset OMA parameters?

Thanks!

Alain
Une erreur inconnue s'est produite lors du traitement de la demande en cours Message : Le serveur distant a retourné une erreur : (403) Interdit. Source : Microsoft.Exchange.OMA.ExchangeDataProvider Trace de pile : at Microsoft.Exchange.OMA.ExchangeDataProvider.OmaWebRequest.GetRequestStream() at Microsoft.Exchange.OMA.ExchangeDataProvider.ExchangeServices.GetSpecialFolders() at Microsoft.Exchange.OMA.ExchangeDataProvider.ExchangeServices..ctor(UserInfo user) Message : Une exception a été levée par la cible d'un appel. Source : mscorlib Trace de pile : at System.Reflection.RuntimeConstructorInfo.InternalInvoke(BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo culture, Boolean isBinderDefault) at System.Reflection.RuntimeConstructorInfo.Invoke(BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo culture) at System.RuntimeType.CreateInstanceImpl(BindingFlags bindingAttr, Binder binder, Object[] args, CultureInfo culture, Object[] activationAttributes) at System.Activator.CreateInstance(Type type, BindingFlags bindingAttr, Binder binder, Object[] args, CultureInfo culture, Object[] activationAttributes) at Microsoft.Exchange.OMA.UserInterface.Global.Session_Start(Object sender, EventArgs e) Message : Une exception de type Microsoft.Exchange.OMA.DataProviderInterface.ProviderException a été levée. EventMessage : UserMessage : Une erreur système s'est produite lors de votre demande. Réessayez. Si le problème persiste, contactez votre administrateur. Source : Microsoft.Exchange.OMA.UserInterface Trace de pile : at Microsoft.Exchange.OMA.UserInterface.Global.Session_Start(Object sender, EventArgs e) at System.Web.SessionState.SessionStateModule.RaiseOnStart(EventArgs e) at System.Web.SessionState.SessionStateModule.CompleteAcquireState() at System.Web.SessionState.SessionStateModule.BeginAcquireState(Object source, EventArgs e, AsyncCallback cb, Object extraData) at System.Web.AsyncEventExecutionStep.System.Web.HttpApplication+IExecutionStep.Execute() at System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously)

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aturgeonAsked:
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aturgeonAuthor Commented:
OK i found out: in echange-oma virtual directory, there was an IP adress missing in the IP restriction list. That's it.
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