Lot of ldap traffic

(Tell me if I should create a seprate post on this, but this appear related ) … wondering if LDAP code in OwnCloud been altered significantly as also noticing huge numbers of unnecessary LDAP authentications?
I implemented 2-factor authentication succsesfully with Owncloud via an Open-LDAP server linked to a Duo authentication proxy (Duo Two-Factor Authentication for LDAP Applications | Duo Security) which pings users with an SMS or other 2-factor method when they log in. This has worked fine thus far, but suddenly (after upgrade) every time a user logs into Owncloud via the web it now generates at least THREE Ldap authentications before login; likewise on the Desktop client, it was making a single authentication on initial login/reboot, which worked well; now the client is generating constant authentications, thus making my 2-factor setup unuusable as users are deluged with text messages etc. Is there way to control all this? What has changed?

I’ve shifted this into separate topic which explains things better… LDAP traffic chaos / duplicate authentications