TCP/IP Client Cannot Access Server (Server Not Responding) After a Successful Switchover by LifeKeeper
The client system has old information in its IP-to-Physical address translation table used by address resolution protocol (arp).
The IP address being used to access the server must be reset. To reset this address, issue the command arp -d server_ip_address. This deletes the address from the translation table. On the next request of that IP address, the table entry will be filled.