Outlook 2007 Connection Problems. Works Ok in 2010 RRS feed

  • Question

  • All,

    We have recently introduced a new Exchange environment to resolve a number of performance issues. The issues we are seeing include Outlook continually hanging, numerous popups saying Outlook is connecting to Exchange and egg timers when opening up meeting invites. We use Exchange 2010 & Outlook 2007 running on a Citrix 2012 environment. Since installing the new improved higher spec exchange environment all of the issues are still showing. We have replced our virtual Exchange environment with a physical one with more exchange servers.

    We have tested everything from a network perpective and have removed everything that could cause issues. The Citrix servers do not have to traverse any firewall / loadbalances to connect to Exchange, they are literally next to each other. We have done a lot of testing to get to the bottom of this and one thing we have noticed is that if we use an Outlook 2010 client istead of 2007 there are no issues at all! We cannot move all of our users to 2010 due to cost.

    What could this be?? How does Outllok 2010 connect to Exchange differently to 2007? By default the "Show Network Connectivity Changes" option in Outlook 2010 is disabled whereas in 2007 it is enabled. We have enabled it on 2010 so the testing is accurate but still 2010 has no issues.

    Anyone have any ideas?

    Many thanks

    Monday, May 12, 2014 7:23 AM