i have recive this error :
Event Type: Warning
Event Source: Server ActiveSync
Event Category: None
Event ID: 3017
Time: 09:37:47 5
IP-based AUTD has detected that the registry value for the maximum heartbeat interval is set to a value greater than the maximum allowable value of  seconds. As a result, we will proceed with the default maximum heartbeat interval of  seconds and the default minimum heartbeat interval value of  seconds. To avoid seeing this message in the future, please correct this registry value, or omit it entirely in order to use the default.
For more information, see Help and Support Center at http://go.microsoft.com/fwlink/events.asp