trouble getting free-busy information, Error: IMAP Authentication cancelled

[Gavin McCullagh]

[ reposting as I gave a bad subject, sorry ]

Hi,

we've been trying to use free/busy information from remote clients, basing on
these instructions.

	http://wiki.horde.org/FAQ/User/Kronolith

When I try to download that file manually I get an empty file:

	https://<server>/client/kronolith/fb.php?u=<username>%40<domain>

I've been trying to track the problem down in the code but it's proving fairly
elusive.  A PEAR error is being raised:

	IMAP error. Server: <server>. Error: IMAP Authentication cancelled 

which appears to be the cause of the issue.  It then can't get a list of
mailboxes.  Has anyone any suggestion why this might happen?  This is kolab
v2.2.3.

Many thanks in advance,
Gavin

Feb 17 17:23:19 HORDE [debug] [kronolith] Hook _horde_hook_share_init in application horde not called. [pid 16215 on line 1683 of "/kolab/var/kolab/www/client/lib/Horde.php"]
Feb 17 17:23:19 HORDE [error] [kronolith] IMAP error. Server: <server>. Error: IMAP Authentication cancelled [pid 16215 on line 1330 of "/kolab/var/kolab/www/client/kronolith/lib/Kronolith.php"]
Feb 17 17:23:19 HORDE [debug] [kronolith] Hook _prefs_change_hook_display_remote_cals in application horde not called. [pid 16215 on line 1683 of "/kolab/var/kolab/www/client/lib/Horde.php"]
Feb 17 17:23:19 HORDE [debug] [kronolith] Guest user does not have READ permission for turba [pid 16215 on line 814 of "/kolab/var/kolab/www/client/lib/Horde/Registry.php"]
Feb 17 17:23:19 HORDE [debug] [kronolith] Guest user does not have READ permission for nag [pid 16215 on line 814 of "/kolab/var/kolab/www/client/lib/Horde/Registry.php"]
Feb 17 17:23:19 HORDE [debug] [kronolith] Hook _prefs_change_hook_display_external_cals in application horde not called. [pid 16215 on line 1683 of "/kolab/var/kolab/www/client/lib/Horde.php"]
Feb 17 17:23:19 HORDE [debug] [kronolith] Hook _prefs_change_hook_display_cals in application horde not called. [pid 16215 on line 1683 of "/kolab/var/kolab/www/client/lib/Horde.php"]
Feb 17 17:23:19 HORDE [debug] [kronolith] Max memory usage: 15204352 bytes [pid 16215 on line 339 of "/kolab/var/kolab/www/client/lib/Horde/Registry.php"]