website issue with HA bigip

If you have health check monitors applied to the pools, verify on both the active and standby BIG-IP units that the results of the health checks match. If it doesn't match (e.g. health monitors passing on active unit but failing on current standby unit), it could mean that the corresponding non-floating self IP of one of the BIG-IP devices is getting blocked from sending health check probes to the pool member(s), so check that you don't have a firewall blocking this communication.

I agree with Brandon. We need more information.