Zimbra syncs to phone, but not other way

[crawlspace35]

Hi,
As of yesterday our mobile devices (android phones) have have suddenly stopped syncing back to zimbra & outlook. If I make a change in zimbra it will propogate to the phone, but if a change is made on the phone it does not sync back to outlook or zimbra. They are all using the native active sync that came on the phone. I have been looking through the logs but don't see anything particularly useful (perhaps I am looking in the wrong place) but if anyone has ever encountered this or has any ideas I would appreciate any help/feedback/point in the right direction. I am currently searching the forums but any help is appreciated.

Thanks in advance

[crawlspace35]

ok then........