sir ,I cannot communicate with secondary connectivity FF server.
Contact your regional ABB support center to sort out what is preventing RNRP from going online in the secondary connectivity server.
Primary interface must be working when RNRP start up. If primary NIC is broken, I suggest swapping so that the healthy NIC is used for primary network while the secondary NIC is disabled until it can be replaced or repaired.
With 5.1 and later RNRP is a mandatory item, non-negociable.
- Try disabling Receive Side Scaling on NIC driver (if present)
- If secondary server uses a different switch compared to the other servers in the system, ensure IGMP is turned OFF also in that switch (required by RNRP).