All of our uses connect to Exchange 2003 using Outlook 2007 on XP or 7. Most use cached mode in Outlook.
Our "BDC" aka secondary DNS & Global Catalog server is slow today for maintenance.
All the NON-cache mode Outlook 2007 clients are suddenly getting Outlook error messages about having problems receiving data from the BDC.
Why is Outlook trying to receive data from a server other than the exchange server? the BDC and exchange servers are not the same. Users with cached mode on have no issues.
The trouble is most apparent when sending and email and starting Outlook.
The DHCP DNS settings list our primary DNS server first.