How long to attempt ECP reconnection before giving up.

[ECP]   ClientReconnectDuration=n

The value n is the number of seconds an Application Server (ECP client) should keep trying to reestablish a connection before giving up or declaring the connection failed. The Application Server (ECP client) continues reconnection attempts at intervals scheduled by the ClientReconnectInterval until the full ClientReconnectDuration expires.

ClientReconnectDuration=1200

10–65535 seconds. The default is 1200 seconds (20 minutes).

On the page System Administration > Configuration > Connectivity > ECP Settings, in the This System as an ECP Application Server column, edit Time to wait for recovery