DP83822I: Inquiry about intermittent connection failure during initial EtherCAT connection.

Tool/software:

Hello,

I am using Ethernet products (DP83822IHRBR) to operate EtherCAT.

Out of the two EtherCAT devices, one intermittently fails to establish an initial connection when repeatedly turned off and on.

(There are no communication disruptions once connected.)

I wonder about the initial connection sequence and the reset timing during initial connection. 

Could you also provide guidance on what to check regarding the intermittent connection issues?

Please provide an answer.

Thank you.