cannot x.509 certificate controlling following hunt criteria:

i message:

cannot x.509 certificate controlling following hunt criteria: storename 'my', storelocation 'localmachine', findtype 'findbysubjectdistinguishedname', findvalue 'cn=highball'.

my web.config setup looks this;

authentication set like...

<authentication mode="windows" />

the bindings set wshttpbinging

and use function set such...

<behavior name="highball.services.serviceverificationbehavior">
  <serviceauthorization principalpermissionmode="useaspnetroles"
        roleprovidername="highballroleprovider" />
  <servicemetadata httpgetenabled="true" />
  <servicedebug includeexceptiondetailinfaults="true" />
  <servicecredentials>
    <servicecertificate findvalue="cn=highball" />
    <usernameauthentication usernamepasswordvalidationmode="membershipprovider"
        membershipprovidername="highballmembershipprovider" />
  </servicecredentials>
</behavior>

i've attempted figure out proceed establish what, how, where certificate stored nonetheless am certain this. anyone any ideas blunder summary i'd severely conclude assist.