[centos32]after offline upgrade 1.8.1-2.1.0 cluster is broken: Connection attempt from disallowed node

http://qa.hq.northscale.net/job/centos-32-2.0-upgrade-P0/111/consoleFull

/testrunner -i /tmp/centos-32-2.0-upgrade-P0.ini upgrade_version=2.1.0-717-rel,get-cbcollect-info=True,GROUP=P0,vbuckets=1024 -t newupgradetests.MultiNodesUpgradeTests.offline_cluster_upgrade,initial_version=1.8.1-942-rel,nodes_init=3,sasl_buckets=1,standard_buckets=1,GROUP=1_8;OFFLINE;WINDOWS;P0

cookie issue ?

test logs:
[2013-06-12 05:14:02,484] - [data_helper:289] INFO - creating direct client 10.1.4.17:11210 bucket0
[2013-06-12 05:14:23,735] - [data_helper:796] WARNING - unable to establish connection to 10.1.4.17.cleanup open connections

server logs:

[error_logger:error,2013-06-12T5:12:55.954,ns_1@10.1.4.17:error_logger<0.6.0>:ale_error_logger_handler:log_msg:76]** Connection attempt from disallowed node 'ns_1@10.1.4.23' **

[error_logger:error,2013-06-12T5:12:56.230,ns_1@10.1.4.17:error_logger<0.6.0>:ale_error_logger_handler:log_msg:76]** Connection attempt from disallowed node 'ns_1@10.1.4.14' **

[error_logger:error,2013-06-12T5:12:56.242,ns_1@10.1.4.17:error_logger<0.6.0>:ale_error_logger_handler:log_msg:76]** Connection attempt from disallowed node 'ns_1@10.1.4.14' **

[error_logger:error,2013-06-12T5:12:56.263,ns_1@10.1.4.17:error_logger<0.6.0>:ale_error_logger_handler:log_msg:76]** Connection attempt from disallowed node 'ns_1@10.1.4.14' **

[error_logger:error,2013-06-12T5:12:56.321,ns_1@10.1.4.17:error_logger<0.6.0>:ale_error_logger_handler:log_msg:76]** Connection attempt from disallowed node 'ns_1@10.1.4.14' **

I see only one test with the issue