Hi,

MS Outlook 2010 was working fine on my Windows Server 2012 with Exchange Server 2013 installed on a virtual machine up until a couple of weeks ago.  Each time I launch Outlook, I get the error "The connection to Microsoft Exchange is unavailable.  Outlook must be online or connected to complete this action."  I have the option of clicking "OK" and if I do, I get the Microsoft Exchange dialog box which shows boxes: 1) the "Microsoft Exchange Sever" with the following text inside of it "bdbf30d5-7b3a-42d8-b0fa-7f9a5667d06d@companyabc.lab" and 2) the "Mailbox" with the following text inside of the box "=SMTP:JLeonard@companyabc.lab."  I tried many things that are suggested online to fix the issue but to no avail.  Any step-by-step to fix the issue would be greatly appreciated.

Thanks,

• Moved by Jason Johnston [MSFT]Microsoft employee 16 hours 55 minutes ago Not a development question.

Were any changes made recently in your environment either to Group Policy or the Exchange Server?  Also do you have a load balancer in place?  Can you try going directly to an Exchange Server?