I am having no luck getting my client machines to login to my server.
I am at a remote office on the same ISP as the Exchange server and have setup an the host name of the Exchange server in my hosts file. I can ping the exchange server fine and access it directly (mapping drive, etc). I go to create my exchange account, it immediately recognized the exchange server and fills in the rest of my name in the field, so I know it is talking with the server.
As soon as I go to launch Outlook, it keeps prompting for a password, eventually coming up and saying: You logon information was incorrect. Check your username and domain...etc.etc
This was working fine on these computers.
I have 3 computers they are all doing the same thing.
I have extensively researched Microsoft's knowledgebase and checked my .dll files and RPC binding
Can anyone offer any insight? I am able to check the accounts via pop3/smtp/OWA. Just not when Outlook is setup to connect to Exchange Server

I am at a remote office on the same ISP as the Exchange server and have setup an the host name of the Exchange server in my hosts file. I can ping the exchange server fine and access it directly (mapping drive, etc). I go to create my exchange account, it immediately recognized the exchange server and fills in the rest of my name in the field, so I know it is talking with the server.
As soon as I go to launch Outlook, it keeps prompting for a password, eventually coming up and saying: You logon information was incorrect. Check your username and domain...etc.etc
This was working fine on these computers.
I have 3 computers they are all doing the same thing.
I have extensively researched Microsoft's knowledgebase and checked my .dll files and RPC binding
Can anyone offer any insight? I am able to check the accounts via pop3/smtp/OWA. Just not when Outlook is setup to connect to Exchange Server