Hi, listers Linux SLES 10 SP1 x86_64, Oracle 10.2.0.2, SAP ECC6.0 Our SAP central instance is throwing "Operating system call connect failed (error no. 111 )" error messages. However, SQL*Plus connects to database without any problem. Usual "troubleshooting" (rebooting database and central instance servers) was applied, without any success. Is this something related to Oracle or we should investigate on some lower level? AppArmor and firewall are disabled, that we have already checked. Thank you in advance, Vladimir Barac Database administrator | Alghanim Industries P.O. Box 223, Safat 13003, Kuwait Tel: +965 1881 111 / ext. 2960 [cid:image001.jpg@01CA45FC.9D5578E0] ______________________________________________________________________ This e-mail message and any attachments to it are for the sole use of the intended recipients and may contain confidential and privileged information. This e-mail message and any attachments are the property of Yusuf A. Alghanim & Sons w.l.l. or any of its subsidiaries or affiliates (?Alghanim Industries?). Any unauthorized review, use, disclosure, or distribution of this e-mail message or its attachments is prohibited. Any opinions expressed in this message are those of the author and do not necessarily reflect the opinion of Alghanim Industries. If you are not an intended recipient, please notify the sender by reply e-mail and destroy all copies of the original message and any attachments. ______________________________________________________________________