Hello: We are using FreeRADIUS version 1.1.02 with OpenSSL version 0.9.6g. The client supplicant is WinXP SP2 with WPA TKIP, PEAP and EAP MS-CHAP v2 configured. The NAS is a Symbol WS5100 WLAN switch configured to use RADIUS, TKIP and PEAP. We configured RADIUS and it starts (in debug mode) and we are able login to the server with test client software using raduser and shared secret password. On the XP client we are able to enter credentials (raduser and shared secret) and the Symbol switch receives and forwards the request to the RADIUS server with the following error in the switch log file: "failed 802.1x authentication for BSS " Then RADIUS server stops with the following error: radiusd: relocation error: /usr/lib/freeradius/rlm_eap_tls-1.0.2.so: undefined symbol: SSL_set_msg_callback Last week Alan said: You have two versions of OpenSSL installed on your system. One that you used to build FreeRADIUS, and another that your dynamic linker finds at run-time. The versions are incompatible. Are there anny other causes for the relocation message above? Also, how can we ensure we don't have two versions? Any advice is greatly appreciated. Thank you! Here is the startup. rad_recv: Access-Request packet from host 10.203.10.51:10666, id=222, length=140 User-Name = "raduser" NAS-IP-Address = Called-Station-Id = Calling-Station-Id = NAS-Identifier = NAS-Port = 29 Framed-MTU = 1000 NAS-Port-Type = Wireless-802.11 EAP-Message = 0x0201000c0172616475736572 Message-Authenticator = 0x46b0bbaca854130635f0fca5647e9a45 Processing the authorize section of radiusd.conf modcall: entering group authorize for request 0 modcall[authorize]: module "preprocess" returns ok for request 0 modcall[authorize]: module "mschap" returns noop for request 0 rlm_realm: No '@' in User-Name = "raduser", looking up realm NULL rlm_realm: No such realm "NULL" modcall[authorize]: module "suffix" returns noop for request 0 rlm_eap: EAP packet type response id 1 length 12 rlm_eap: No EAP Start, assuming it's an on-going EAP conversation modcall[authorize]: module "eap" returns updated for request 0 users: Matched entry raduser at line 90 modcall[authorize]: module "files" returns ok for request 0 modcall: leaving group authorize (returns updated) for request 0 rad_check_password: Found Auth-Type EAP auth: type "EAP" Processing the authenticate section of radiusd.conf modcall: entering group authenticate for request 0 rlm_eap: EAP Identity rlm_eap: processing type tls radiusd: relocation error: /usr/local/lib/rlm_eap_tls-1.1.0.so: undefined symbol: SSL_set_msg_callback John Metcalfe, Jr. IT Specialist - AIS IBM Business Consulting Services, Public Sector Telephone: 240-396-5305 email: metcalfej@us.ibm.com