21 Replies Latest reply: Apr 26, 2011 7:08 AM by AnToSe RSS

RFC_COMMUNICATE_FAILURE (to SAP)

AnToSe

Hi!

A customers located in US have an QV Server with an existing QvSAPConnector to the SAP

Now that installation should be moved to Sweden and I'm trying to setup the installation in Sweden. When I'm trying to connect to SAP I received the following error and I'm not shore where the "error is"

 

Have anyone an idea what could be wrong or what we should check?

The personal that handle the firewall etc says the IP and ports are open correct.

 

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  • RFC_COMMUNICATE_FAILURE (to SAP)
    Sunil Jain

    pls check whether sufficient authorization given qlikview user id created in SAP.

     

    • SV:Re: RFC_COMMUNICATE_FAILURE (to SAP)
      AnToSe

      Hi Sunil!

      I use the same Client, System Number, Username and Password as they use live in USA today. The only different on my installation is the IP to the server (extern)

      Do you know if anything needs to be "changed/added" on the SAP server to allow this client to access?

      • SV:Re: RFC_COMMUNICATE_FAILURE (to SAP)

        Hi,

        Compare the hosts files from both machines, C:\Windows\system32\drivers\etc\hosts . Sometimes SAP systems are listed there.

        Try also from command line "telnet machine port" to see that firewall is really opened. Black screen means OK

        Than try to connect with same SAP user from other tool, and try to query same tables. It is easier to fix authorization problems from "approved" SAP tool, than start explaining what is QlikView

        -Alex

      • SV:Re: RFC_COMMUNICATE_FAILURE (to SAP)
        Sunil Jain

        Dear Anders,

        pls assign QTQVACCESS role to qlikview user created in SAP to extract data from SAP.

        Regards

        Sunil

  • RFC_COMMUNICATE_FAILURE (to SAP)

    Hi,

    I'm also facing the same RFC failure problem.
    When i tried to install transporter in SAP System, i get the following error.

    Could anyone help me.

    Regards,
    Srini

  • SV:RFC_COMMUNICATE_FAILURE (to SAP)
    AnToSe

    Hi!

    Must tell my case is solved. The problem was the infrastructure. It was not possible to connect the SAP outside the subnet. They change it and move the QlikView Server in SWE to the same subnet and then it works.

     

    I don't understand anything of this but this is an answer from a mail conversation to the SAP hosting partner in the US

    "Yes, unfortunately, SAP will only use specific IPs in your case XXX.XX.X.XX. It does not consider anything else that was changed by NAT. In some cases addressing this with netbios name instead of IP will work. Set the RFC with a node name. That way, the IP is resolved via DNS. I had this same issue with another company using 2 SAP servers in 2 different subnets. There were specific RFC calls that the 2 servers were having issues with. At a glance everything works but things like gateway resets, TMS approvals were very unstable. The only fix was placing the servers in the same subnet."