Problems with connection in cluster

I want to set up a cluster of 2 same PCs with using MATLAB R2011b. Result of Test Connectivity in The Admin Center is clean, there are no errors/watnings. But when i run my program at the end i've no results. At log files writen next:

Tue Feb 25 11:20:45 BDT 2014 | 0 | Unexpected error in PreJobEvaluate - MATLAB will now exit and restart.
Tue Feb 25 11:20:45 BDT 2014 | 0 | Error using pPreJobEvaluate (line 47)
MPI Communication Error: Other MPI error, error stack:
Tue Feb 25 11:20:45 BDT 2014 | 0 | MPI_Comm_connect(120)............................: MPI_Comm_connect(port="tag=0 port=28350 description=comp2.mydomain.com
Tue Feb 25 11:20:45 BDT 2014 | 0 | ifname=192.168.0.18 ", MPI_INFO_NULL, root=0, comm=0x84000000, newcomm=009D3234) failed
Tue Feb 25 11:20:45 BDT 2014 | 0 | MPID_Comm_connect(191)...........................: 
MPIDI_Comm_connect(379)..........................: 
Tue Feb 25 11:20:45 BDT 2014 | 0 | MPIDI_Create_inter_root_communicator_connect(134): 
MPIDI_CH3I_Connect_to_root_sock(304).............: 
Tue Feb 25 11:20:45 BDT 2014 | 0 | MPIDU_Sock_post_connect(1231)....................: unable to connect to comp2.mydomain.com on port 28350, exhausted all
Tue Feb 25 11:20:45 BDT 2014 | 0 | endpoints (errno -1)
MPIDU_Sock_post_connect(1247)....................: gethostbyname failed, Этот хост неизвестен.
Tue Feb 25 11:20:45 BDT 2014 | 0 | (errno 11001).

Error in dctEvaluateTask (line 24)
    job.pPreJobEvaluate(task);

Error in
Tue Feb 25 11:20:45 BDT 2014 | 0 | distcomp_evaluate_task>iDoTask (line 123)
    dctEvaluateTask(postFcns, finishFcn);

Error in distcomp_evaluate_task
Tue Feb 25 11:20:45 BDT 2014 | 0 | (line 48)
    iDoTask(handlers, postFcns);

And one more error

MATLAB is running in headless mode.  Figure windows will not be displayed.
Warning: Unable to locate a personal folder for $documents\MATLAB
{Warning: Userpath must be an absolute path and must exist on disk.} 

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How could I fix this errors?