We are replacing Office 2010 by Office 2013. We are using Skype for Business 2015 with Office 2010. After installation of Office 2013, users get the a message as the attached screenshot.

If we open the Outlook first before Skype, there is no problem. Also if we uncheck "Use cache Exchnage mode", there is no problem either. But Outlook Online gives slowness in accessing mail box frequently. So "Cache Exchnage mode" is necessary.

I guess this is a bug in Office 2013 or on SFB. If you guys have any solution, please do let me know.

Thanks

Hi,

There is no screenshot in this thread, would you please let me know the error message?

Or you can send the screenshot to our email address:

ibsofc@microsoft.com

Please add the url of this thread in the message for easy tracking.

Regards,

Melon Chen
TechNet Community Su