The other day I ran into a situation where all Crystal’s were going to error, after working fine. Doing a little research on My Oracle Support I found that this error:

Warning: ORB::BOA_init: hostname lookup returned `localhost’ (127.0.0.1/::1)
Use the -OAhost option to select some other hostname

is actually related to the IPv6 being disabled. On the servers were this occurred the odd thing appears to be that IPv6 was disabled prior to the error occurring. So it is possible that some patch or fix or another change the administration team did started this error to occur. After re-enabling the IPv6 the error went away. This appears to occur with PeopleTools 8.5x with Crystal 2008 running in the Windows 2008 environment.

Windows 2008 non-R2:
Control Panel > Network > Manage Network Connections > highlight Local Area Connection > Advanced > Advanced Settings > Bindings for Local Area Connection.
1) If IPv6 is not enabled, enable it, then retest.
2) If enabled, try switching the order, then retest.

Windows 2008 R2:
Control Panel > Network > double-click on Local Area Connection > Properties >
1) If IPv6 is not enabled, enable it, then retest.
2) If enabled, try switching the order, then retest.