Here is the debug of a packet, there is nothing special about this packet. This packet hits the radius server every 30 seconds to test availability, for monitoring purposes. What hangs is the release of the rlm_sql ... (using sql_unixodbc) Ready to process requests. rad_recv: Access-Request packet from host x.x.x.x:32769, id=253, length=51 User-Name = "intermapper" User-Password = "illicom" 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 "chap" returns noop for request 0 modcall[authorize]: module "mschap" returns noop for request 0 rlm_realm: No '@' in User-Name = "intermapper", skipping NULL due to config. modcall[authorize]: module "domain" returns noop for request 0 rlm_realm: No '\' in User-Name = "intermapper", skipping NULL due to config. modcall[authorize]: module "ntdomain" returns noop for request 0 radius_xlat: 'intermapper' rlm_sql (sql): sql_set_user escaped user --> 'intermapper' radius_xlat: 'select id, username, attribute, value, op from radcheck where username = 'intermapper' order by id' rlm_sql (sql): Reserving sql socket id: 9 radius_xlat: '' radius_xlat: 'select id, username, attribute, value, op from radreply where username = 'intermapper' order by id' radius_xlat: 'select radgroupreply.id, radgroupreply.groupname, radgroupreply.attribute, radgroupreply.value, radgroupreply.op from radgroupreply, usergroup where usergroup.username = 'intermapper' and usergroup.groupname = radgroupreply.groupname order by radgroupreply.id' rlm_sql (sql): Released sql socket id: 9 modcall[authorize]: module "sql" returns ok for request 0 modcall[authorize]: module "files" returns notfound for request 0 modcall: leaving group authorize (returns ok) for request 0 auth: type Local auth: user supplied User-Password matches local User-Password Login OK: [intermapper] (from client intermapper port 0) Processing the post-auth section of radiusd.conf modcall: entering group post-auth for request 0 rlm_sql (sql): Processing sql_postauth radius_xlat: 'intermapper' rlm_sql (sql): sql_set_user escaped user --> 'intermapper' radius_xlat: 'insert into radauth (UserName, Password, RadReply, NASIPAddress, NASIdentifier, NASPort, NASPortType, CalledStationId, CallingStationId) values ('intermapper', 'illicom', 'Access-Accept', 'x.x.x.x', '', '', '', '', '')' rlm_sql (sql) in sql_postauth: query is insert into radauth (UserName, Password, RadReply, NASIPAddress, NASIdentifier, NASPort, NASPortType, CalledStationId, CallingStationId) values ('intermapper', 'illicom', 'Access-Accept', 'x.x.x.x', '', '', '', '', '') rlm_sql (sql): Reserving sql socket id: 8 30 - 45 (sometimes 60) second pause .... then finally... rlm_sql (sql): Released sql socket id: 8 and then radiusd processes packets that apparently it had buffered... During this 30-60 second pause of freeradius, I tested queries to the database with isql and everything returned fine. I also was able to use our billing/accounting client to pull data from the database and it was fine. There is no resource intensive application pulling data from the database when this is happening and all other db clients and communication goes uninterrupted. Any ideas?