Exception when trying to connect to SAP with SAP .NET Connector 3.0

[former_member767549]

I'm trying to establish a connection to SAP but I get the following error message:

LOCATION    CPIC (TCP/IP) on local host xxx with Unicode
ERROR       partner '127.0.0.1:3300' not reached
TIME        Mon Sep 20 13:12:16 2021
RELEASE     721
COMPONENT   NI (network interface)
VERSION     40
RC          -10
MODULE      nixxi.cpp
LINE        3289
DETAIL      NiPConnect2: 127.0.0.1:3300
SYSTEM CALL connect
ERRNO       10061
ERRNO TEXT  WSAECONNREFUSED: Connection refused
COUNTER     2

Additional information:

• Server IP address is correct because I can log in via the GUI.
• The SAP server runs on Virtualbox (Linux Mint).
• Port forwarding rule:

I suspect the port number 3300 is wrong. How can I solve this problem?

[isaias_freitas · Accepted solution]

Hello,

The port 3200 is for SAP GUI access.

The port 3300 is for RFC access (e.g., your .Net Connector).

Maybe you need to add a port forwarding rule for port 3300 too ;-).

Regards,

Isaías

[former_member767549 · Accepted solution]

Thank you!

[isaias_freitas · Accepted solution]

You are welcome 🙂

[Pebz · Accepted solution]

Thank you sooo much! For me, this is the solution for the Screen Painter not opening, you have made my day!

[isaias_freitas · Accepted solution]

You are welcome, @Pebz!