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SAPOSS connection error(NetWeaver 7.4 SR2)

Oct 18, 2016 at 09:24 AM


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Former Member

Hello there,

I have recently build the NetWeaver 7.4 SR2 (ABAP).

While checking SAPOSS rfc in transaction SM59, it is giving following error.

I already finished Performing Automated Initial Setup (using transaction STC01 -> SAP_BASIS_SETUP_INITIAL_CONFIG)

LogonConnection Error

Error DetailsError when opening an RFC connection (LB: Hostname or service of the message ser

Error DetailsERROR: *** ERROR ***

Error DetailsLOCATION: SAP-Server XXXXXXXXX_YYY_00 on host XXXXXXXXX (wp 0)

Error DetailsDETAIL: NiErrSet Error DetailsCOMPONENT: NI (network interface)

Error DetailsCOUNTER: 8 Error DetailsMODULE:

Error DetailsLINE:

Error DetailsRETURN CODE:

Error DetailsSUBRC: 0

Error DetailsRELEASE: 742

Error DetailsTIME: Tue Oct 18 08:29:50 2016

Error DetailsVERSION: 40

When I call transaction OSS1, it is giving following error.

- Unable to connect to SAPNet message server (Default connection will be used...) Message no. S1452

- partner '' not reached



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2 Answers

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Former Member Oct 19, 2016 at 07:12 AM

Hello Masaya,

Hope you've mentioned the correct details for SAP router at customer and SAP side in transaction OSS1.


Best Regards,


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Kaushik Debnath Oct 19, 2016 at 07:43 AM

Hi Former Member,

How about you try the alternative for this in RFC SAPNET_RFC. I think this will also give you error message. Is your saprouter running?? If running, then what is the saprouter running command you are using?? As per your issue, it almost looking like if you telnet your Public IP to the port 3299, it would not happen successfully. The 3299 is the Port/Service for your company saprouter service. Give the details of what you see under OSS1 -> Parameter(File Menu Path) -> Technical settings. Also inside the saprouter, provide what you see inside the SAProutab file. What is the OS you are using for SAProuter, because recently it was recommended to use a 64-Bit system from SAPLabs for saprouter system in your company??



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