VPX instance on SDX keeps going out of service.

 

We already have following article for similar issue: 
http://support.citrix.com/article/CTX136301

Following are the instructions that can be followed troubleshooting instance on SDX going out of service:
If the issue remains same, next step: 

1)Try creating new admin profile and binding to instance.
If the step (1) fails:
2) Try deleting and recreating Instance.
If the step (2) fails and If you get error: "instance IP address is already being used",
3) Try checking if arp is being learned on XS (arp -a)
4) If yes: Try Deleting arp entry for same IP (arp -d <host/IP>).

If you still get ping response, check if same IP is being used by any other entity in network.

If the above instruction does not solve the issue, open Citrix Support Case.

Problem Cause

same instance IP being used by another entity.