Hi all,
I'm having no problems while connecting with several of our customers. However, there is one customer for which the connection doesn't work.
The message is " Logon to system xxx failed (Connection to system "xxx" is currently not available) "
As far as I know, the system meets all the technical requirements
- WAS731 / 0004
- The SICF services are correct
- My SAP user has profile SAP_ALL and SAP_NEW
- I don't use SNC.
- Is it perhaps an issue of the port 3310? Because if that is the case, I can try to ask our customer to open this port.
- (note: I don't know if it has anything to do with this problem, but the graphical screen painter also doesn't work. Maybe also because a specific port that is closed on the filewall?)
The Eclipse Log contains the following errors (I have changed the IP addresses here to protect the innocent 
)
Caused by: com.sap.conn.jco.JCoException: (102) JCO_ERROR_COMMUNICATION: Connect to SAP gateway failed
Connection parameters: TYPE=A DEST=adt.tmp_1395321753698 ASHOST=nn.nnn.nn.nn SYSNR=10 PCS=1
LOCATION CPIC (TCP/IP) on local host with Unicode
ERROR partner 'nn.nnn.nn.nn:3310' not reached
TIME Thu Mar 20 14:24:21 2014
RELEASE 721
COMPONENT NI (network interface)
VERSION 40
RC -10
MODULE nixxi.cpp
LINE 3286
DETAIL NiPConnect2: nn.nnn.nn.nn:3310
SYSTEM CALL connect
ERRNO 10060
ERRNO TEXT WSAETIMEDOUT: Connection timed out
COUNTER 2
Caused by: RfcException: [null]
message: Connect to SAP gateway failed
Connection parameters: TYPE=A DEST=adt.tmp_1395321753698 ASHOST=nn.nnn.nn.nn SYSNR=10 PCS=1
LOCATION CPIC (TCP/IP) on local host with Unicode
ERROR partner 'nn.nnn.nn.nn:3310' not reached
TIME Thu Mar 20 14:24:21 2014
RELEASE 721
COMPONENT NI (network interface)
VERSION 40
RC -10
MODULE nixxi.cpp
LINE 3286
DETAIL NiPConnect2: nn.nnn.nn.nn:3310
SYSTEM CALL connect
ERRNO 10060
ERRNO TEXT WSAETIMEDOUT: Connection timed out
COUNTER 2
Return code: RFC_FAILURE(1)
error group: 102
key: RFC_ERROR_COMMUNICATION