Avoiding the timeout for the StreamingSubscriptionConnection

Question

Hello , 
Simply I am having problems because of getting timeout for the StreamingSubscriptionConnection after 30 mins, many people suggesting to open the connection again, but one I do that ... and if I stopped the connection intentionally and open it again manually (after the first time out) , I am receiving an error about "there is another connection open against the subscription" and with the exception the subscriptions are get disposed. 
Do you have any idea of why this is happening? 

My Idea is to avoid having the timeout , I thought in the beginning that receiving notification might restart the timeout again, but it does not. 
So does anyone know how to refresh the timeout so I wont get the onDisconnect event ? 

Answer 1

Glen Scales has an excellent series on using the EWS Managed API with Powershell.

In this post

http://gsexdev.blogspot.co.uk/2012/05/ews-managed-api-and-powershell-how-to_28.html#!/2012/05/ews-managed-api-and-powershell-how-to_28.html

he discusses notificiations, and at the bottom shows a method for registering an event that will automatically re-open the connection when it gets closed.

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Answer 2

Hello , Thanks for the reply , but actually I am reOpening the connection from the C# code, but that generates problems later if I the connection got closed and opened later. So is there difference between the two ways ? because both of them are using the EWS API . 

Answer 3

Glen's method uses the onDisconnect event to trigger a re-connect immediately so you never lose the connection. I cannot say exactly what the difference is.  The timeout value is fixed, and as far as I know there is no way to avoid having it time out.  You just have to deal with the fact that it is going to time out.

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