SIP Synchronized showing false

Hi all.

we have installed a new Oracle SBC 4500 cluster, at the moment wancom2 is disconnected, but when running 'show health' SIP Synchronized is coming through as 'False'

Any ideas?

PEERHA1TERA# sh health

    Media Synchronized            true

    SIP Synchronized              false

    REC Synchronized              disabled

    MGCP Synchronized             disabled

    H248 Synchronized             disabled

    XSERV Synchronized            disabled

    Config Synchronized           true

    Collect Synchronized          disabled

    RADIUS CDR  Synchronized      disabled

    Rotated CDRs Synchronized     disabled

    IPSEC Synchronized            disabled

    Iked Synchronized             disabled

    TSCF Synchronized             disabled

    Active Peer Address

Redundancy Protocol Process (v3):

    State                Active

    Health                91

    Lowest Local Address        169.254.1.1:9090

    1 peer(s) on 2 socket(s):

    PEERHA2TERA: v3, Standby, health=91, max silence=2480