We upgraded to V5R3 last Saturday and since then I've been seeing the following error in the notes misc log: "LDAP Server: Listener failure, TCP/IP port number  is already in use on this system. Suspending listen task for 20 seconds due to network errors." Does anyone know why this is happening and how it can be corrected? I'm running Domino R6.5.1, and via wrkactjob I can see that the LDAP task is active. Regards, Jerry Gerald Kern IBM Certified AS/400 RPG IV Developer & RPG IV Programmer MIS Project Leader, Lotus Notes/Domino Administrator The Toledo Clinic, Inc. 4235 Secor Road Toledo, OH 43623-4299 Phone 419-479-5535 gkern@xxxxxxxxxxxxxxxx ***** This email message, including any attachments, is for the sole use of the intended recipient(s) and may contain confidential and privileged information. Any unauthorized review, use, disclosure or distribution is prohibited. If you are not the intended recipient, please contact the sender by reply email and destroy all copies of the original message.