BR*TOOLS errors on distributed system

Hello,

I installed 2 hosts for a SAP Netweaver 7.01 system.

HOST1 -> windows 2003 x64 is hosting database (Oracle 10.2.0.4 x64)

HOST2 -> windows 2003 x64 is hosting instance 00 (Central services), Instance 01 (Central instance) and Instance 02 (Dialog instance).

When I try to schedule jobs in DB13 like check DB or DB Backup, I get this error :

Job started

Step 001 started (program RSDBAJOB, variant &0000000000005, user ID XXXXX)

No application server found on database host - rsh/gateway will be used

Execute logical command BRCONNECT On host HOST1

Parameters: -u / -jid CHECK20100211104827 -c -f check

SXPG_STEP_XPG_START: is_local_host: rc = 403

SXPG_STEP_XPG_START: host = HOST1

SXPG_STEP_XPG_START: is_local_r3_host: rc = 802

SXPG_STEP_XPG_START: RFC_TCPIP_CONNECTION_OPEN: rc = 1003

SXPG_STEP_COMMAND_START: SXPG_STEP_XPG_START returned: 1.003

SXPG_COMMAND_EXECUTE(LONG)

<timestamp> = 20100211104903

COMMANDNAME = BRCONNECT

ADDITIONAL_PARAMETERS = -u / -jid CHECK20100211104827 -c -f check

LONG_PARAMS

OPERATINGSYSTEM = ANYOS

TARGETSYSTEM = HOST1

DESTINATION

SY-SUBRC = 1003

SXPG_COMMAND_EXECUTE failed for BRCONNECT - Reason: program_start_error: For More Information, See SYS

Job cancelled after system exception ERROR_MESSAGE

I try to execute brtools.exe from host2 :

C:\>rsh HOST1 -l nwdadm brtools

host1.domain.com:Connection refused

rsh: can't establish connection

From database host (HOST1)
HOST2\sapmnt\NWD\SYS\exe\uc\NTAMD64\brtools.exe is working fine.

Test of RFC SAPXPG_DBDEST_HOST1 returns :

Logon Connection Error

Error Details Error when opening an RFC connection

Error Details ERROR: timeout during allocate

Error Details LOCATION: SAP-Gateway on host HOST2/ sapgw01

Error Details DETAIL: no connect of TP D:\usr\sap\NWD\SYS\exe\uc\NTAMD64\sapxpg.exe from hos

Error Details COMPONENT: SAP-Gateway

Error Details COUNTER: 46

Error Details MODULE: gwr3cpic.c

Error Details LINE: 2007

Error Details RETURN CODE: 242

Error Details SUBRC: 0

Error Details RELEASE: 701

Error Details TIME: Fri Feb 12 09:18:30 2010

Error Details VERSION: 2

I probably forgot a configuration step but I don't know where !

Can you help me ?

Many thanks,