On the iFolder production server users cannot login to iFolder

this is the error on the Apache2 iFolder server.
LOCATE_SERVER <user_name> authentication failure

There are 4 servers in this tree. 2 Netware 6.5 and 2 Netware 6 - IFolder
is on a 6.5)

ON a single testserver (Netware 6.5) Ifolder works fine.

All the iFolder settings between the 2 servers look the