SAPOSS error while test connection

[Former Member]

Hi Expert,

while checking test connection for SAPOSS I am getting error "Error when opening an RFC connection"

Below is the screenshot for the same.

Any help is appreciated.

Regards,

Dipesh Gupta

[arun_kumar165]

Hi Gupta,

Please check you message server entry is correct in host name oe else ping the message server from the system.check whether it is reachable.

[Ulrich_Schmidt1]

Hi Gupta,

also please take into account: the destination "SAPOSS" probably refers to the support connection between your SAP system and the SAP network. There are several prerequisites necessary for this, e.g. firewall ports need to be opened, saprouters need to be installed and route tables to be customized, SAP needs to open access to its support network for you (and you need to do the same in the opposite direction...)

I recommend that you contact SAP network support and review your current setup together with them. Probably there is still some missing step, so that the IP address of the OSS system is not yet "visible" from inside your local network.

Some documentation is also available here: http://help.sap.com/saphelp_nwes73/helpdata/en/4a/461ea98d0614d2e10000000a42189b/content.htm

Best Regards, Ulrich

[Former Member]

Thanks Arun and Ulrich for your suggestion.

I was stuck in some other issue that's why bit late to reply.

Ulrich, our router is installed and configured even few weeks back it is working fine.
can you please give me a hint from where I can start debugging? And one more point I want to add here, for all our SAP system it is stop working at same time.

Arun, can you please explain me how I check the correct entries for message server? I think might be this is the possible solution for my problem as all the OSS connection stop working at same time.

Thanks in advance.

Regards,
Dipesh Gupta

[Ulrich_Schmidt1]

Hi Gupta,

I can't really give recommendations on how to trouble-shoot this. The possibilities where something can go wrong, are just too many... Could even be a hardware failure, like a switch, a router or a network cable somewhere that broke down. Or someone changed the configuration of the firewall, etc. etc. I don't think we can help you from remote. Best would be to open a support ticket and let the SAP network experts take a look at it. It really seems to be an "infrastructure problem", not an "ABAP Connectivity problem".

Best Regards, Ulrich

[RaymondGiuseppi]

• Were some firewall/network settings changed recently?
• Did someone update some SAProuter data?
• Are certificates up-to-date?

Read

• SAProuter
  •   Prerequisites
  •   SAProuter Detailed Configuration Set Up
  •   Security
  •   Service Connector
  • SAProuter Certificates 
  •   Line Opener Program
• OSS
  • 766505 - OSS1: Changes to RFC connection SAPOSS
  • 2000132 - Configuring RFC connections to the SAPNet R/3 front end (OSS) correctly
  • 2191130 - Problems with the SAPOSS connection

Regards,

Raymond

[Former Member]

Thanks guys for you help.

Issue is resolved automatically when server is restarted due to some reason.

Regards,
Dipesh Gupta