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SAP NW 2004s Trial - Installation error: SAP GUI - partner not reached

Hallo all,

today I installed SAP Netweaver 2004s ABAP Trial Version on my computer

Microsoft Windows XP Professional, Service Pack 2

There were no errors during installation and the system can be started and stopped. However logon via SAP-Logon does not work.

The logon settings are:

Description: SAP NW 2004s

Application Server: Dell9200 (name of the computer)

System ID: NSP

System Number: 00

SAP System: R/3

The error message is:

partner not reached (host Dell9200, service sapdp00)


Component: NI (network interfce)

Release: 640

Version: 37

Module: nixxi_r.cpp

Line: 8688

Method: NiPConnect2

Return Code: -10

System Call: SiPeekPendConn

Error No: 10061

Error Text: WSAECONNREFUSED: Connection refused

The entries in the HOSTS-Datei are localhost Dell9200 (this is the name of the computer)

I have also checked the entries in the registry file



LAN - Microsoft Loopbackadapter:



DNS-Server: no entry

ping localhost bzw. Dell9200 gets an response

I have already deinstalled and reinstalled SAP-GUI but the problem is the same.

Who can help me?


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1 Answer

  • Posted on Dec 03, 2006 at 05:50 PM

    Please try to use localhost as your application server name.


    Rich Heilman

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    • Former Member Former Member


      I had the same problems.

      I have the solution, i hope.

      The first step after unsuccessfully installation, delete all entries in the registry with SAP DB*. The best way is a system without any SAP-Installation(s).

      If you have installed the LoopBackAdapter and the services-file has this line:

      sapmsNSP 3600/tcp

      a JAVA-Runtime is runing, 1.4.2_12, on my system,

      the SAP-logon need the entries

      Server = localhost

      System-ID = NSP

      System-Number = 00

      and finaly you must install a connection for your host with the network.

      Send me your e-mail-account. Then I send back an Description.


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