I have had an issue with Mac users and the WebAcc client constantly dropping their connection so they have to relogin.

They receive a Mac or browser message that says, Your request could not be processed due to a connection failure with the server. Contact your administrator if the problem persists after re-login.

It started in GW 2014 and persisted through sp1, sp2 and now R2 HP1.

The Mac users are at the top of the organization and we are getting the old, in my last job Macs worked perfectly with Outlook online.

WebAcc and all other services are solid with the PC. I am testing Outlook over IMAP and Mac Mail with the Calendar server, but the results so far are mixed. The single address book will definitely be an issue, although it is a Mac limitation and both the Cal and Card data is inconsistent.

Any direction is appreciated!