the queues and the connections display an ERROR from Web console

Dear Sir,

i have a problem and i need to be fix, therefore i will send you my
configuration for both broker A and B for different activemq running on the
same mashine:

my problem is that the queue some time from BrokerA is not to display and
also the connections. If i stop both of them and start them again. then it
will the problem with the BrokerB --> no display and BrokerA is OK. I'm
talking about the web console with the differnet ports 8161 --> borker A
and 8162 --> fro brokerB

here is the configuration for both of them:

BrokerA:

<broker xmlns="http://activemq.apache.org/schema/core" brokerName="brokerA"
brokerId="A" dataDirectory="${activemq.data}">
<networkConnectors>
<networkConnector name="linkToBrokerB"
uri="static:(tcp://0.0.0.0:60002)" networkTTL="2" duplex="true" />
</networkConnectors>

<transportConnectors>

<transportConnector name="openwireproducer"
uri="tcp://0.0.0.0:60001?trace=true" updateClusterClients="true"
rebalanceClusterClients="true" updateClusterClientsOnRemove="true"
updateClusterFilter="brokerA,brokerB" />

<transportConnector name="openwireconsumer"
uri="tcp://0.0.0.0:60004?trace=true" updateClusterClients="true"
updateClusterFilter="brokerA,brokerB" />

...

and the BrokerB looks like that:

<networkConnectors>
<networkConnector name="linkToBrokerA"
uri="static:(tcp://0.0.0.0:60001)" networkTTL="2" duplex="true" />
</networkConnectors>

<transportConnectors>

<transportConnector name="openwireproducer"
uri="tcp://0.0.0.0:60002?trace=true" updateClusterClients="true"
rebalanceClusterClients="true" updateClusterClientsOnRemove="true"
updateClusterFilter="brokerA,brokerB"/>
<transportConnector name="openwireconsumer"
uri="tcp://0.0.0.0:60005?trace=true" updateClusterClients="true"
updateClusterFilter="brokerA,brokerB"/>

any help will be greatful!

thanks in advance
Muthana