Based on your last message and error snippet attached it looks like,

* You had configured iFolder server without any LDAP(AD/OpenLdap) server.

i.e. a standalone installation where, you created users from iFolder admin console and logged as those users and used iFolder system.

All iFolder admin, web access and client connections worked fine for you.

*  On top of this installation, you ran simias-server-setup again with same datapath(as used for the above configuration), but this time enabled

LDAP(AD server).

Now your are not able to login admin console(neither with old admin name nor with iFolderadmin name ), not able to connect as old users(users created before enabling LDAP) from webaccess and clients,   where as you are able to login to  webaccess and client as other newly added users(other new users imported from LDAP i.e AD).

If this is what it is, then(as observed) this iFolder configuration will not work completely.  This is because, ifolder will not allow you to have mix of local users + LDAP users and previously configured admin is not getting replace by iFolderAdmin in iFolder domain.  Since now AD is enabled, iFolder will try and authenticate all users against LDAP irrespective of fact that users were created locally or imported from LDAP.

So the ideal solution for this problem would be, clean up iFolder data path, freshly configure the server setup with steps mentioned in iFolder + AD configuration document attached in this thread.

This way you will make sure that all user info is coming from AD, authentication also happens with AD and entire iFolder system functions properly.