We use the BBES 4.16 MR6 with a blackberry testkey and groupwise 8.01.
I set the server up, as a virtual ( Vmware esx ) win2003 server.
All servicepacks installed, BBES in SOAP mode.

After Installation, everything works fine. There was only a problem, with the bidirectional sync of the calenderand the addressbook.
Sync from GW to BB was o.k., but not from BB to GW.
However, after a couple of days the sync stops. No transfer from / to the BB device. PIN and SMS transfer is O.K..

The server makes _one_ transfer from the server to the devices, after a restart, but no transfers later.

Any idea ?