Hi Robo, Please follow this instruction to make sure you make the right IIS prerequisites installed. http://technet.microsoft.com/en-us/library/bb691354.aspx Especially "Install the Windows Server 2008 R2 operating system prerequisites" part if it is your version. Hope it helps.Rowen TechNet Community Support

Create a Test user and Verify that name is updating on you Global address list (OWA) and Offline address book (Outlook)

Hi all, I just completed my install of Exchange 2010, but I can't make any progress with actually connecting to it in any way. I have created a test user ('fred.bloggs') in the AD domain. I can log in successfully to a test PC running WinXP, but when I try to use Outlook to connect to my Exchange server, I just get: "The name cannot be resolved. The name cannot be matched to a name in the address list" If I try OWA (logging in as "mydomain\fred.bloggs") then I get the message: The user name or password you entered isn't correct. Try entering it again. I'd appreciate any input from you Exchange 2010 gurus! Thanks in advance... RS

Update: I can now connect with Outlook, but OWA is still giving the same problem. I also can't connect to the Web Management Interface (not even as Administrator) on the Exchange Server itself. ("The user name or password you entered isn't correct. Try entering it again.") Any ideas? :^) Thanks, RS

Create a Test user and Verify that name is updating on you Global address list (OWA) and Offline address book (Outlook)

Hi Robo, Please follow this instruction to make sure you make the right IIS prerequisites installed. http://technet.microsoft.com/en-us/library/bb691354.aspx Especially "Install the Windows Server 2008 R2 operating system prerequisites" part if it is your version. Hope it helps.Rowen TechNet Community Support

Hi, Any update?Rowen TechNet Community Support

Hi RoboScorpion, Can you run test-servicehealth on your server? Also can you take a look in your Application Event logs? Thanks, Neil.

Might not be the issue but I would also check that users objects in AD have Inherit Security Permissions as well. To do this Click on View in AD Users and Computers and select Advanced Features Open a user object and click Security tab Click the Advanced Button Select the box that says Include inheritable permissions from this object's parent Click OK