Frequent net.spy.memcached.MemcachedConnection.handleReads message

I have created 5 buckets and while trying to connect the last one, it is not connected with following error.
I am connecting from my local Mac OS to Couchbase in Linux server.
Installed Couchbase server with couchbase-server-enterprise_2.2.0_x86_64_openssl098.rpm

2013-10-28 14:05:09.403 INFO com.couchbase.client.CouchbaseConnection: Reconnecting {QA sa=/X.X.X.X:11210, #Rops=0, #Wops=1, #iq=0, topRop=null, topWop=SASL steps operation, toWrite=0, interested=0}
2013-10-28 14:05:09.482 INFO com.couchbase.client.CouchbaseConnection: Connection state changed for
2013-10-28 14:05:09.483 WARN net.spy.memcached.auth.AuthThreadMonitor: Incomplete authentication interrupted for node {QA sa=/X.X.X.X:11210, #Rops=0, #Wops=1, #iq=0, topRop=null, topWop=SASL steps operation, toWrite=0, interested=8}
2013-10-28 14:05:09.484 WARN net.spy.memcached.auth.AuthThread: Authentication failed to /X.X.X.X:11210
2013-10-28 14:05:09.557 INFO com.couchbase.client.CouchbaseConnection: Reconnecting due to exception on {QA sa=/X.X.X.X:11210, #Rops=1, #Wops=0, #iq=0, topRop=SASL auth operation, topWop=null, toWrite=0, interested=1} Disconnected unexpected, will reconnect.
at net.spy.memcached.MemcachedConnection.handleReads(
at net.spy.memcached.MemcachedConnection.handleIO(
at net.spy.memcached.MemcachedConnection.handleIO(

Pls. suggest how to resolve this.