Re: Outlook 2007 clients can't connect

Funny you ask, because I have installed a packet sniffer (wireshark) on both the client and the server. Data is going to and from the server, nothing abnormal there. Layer 2 looks good as well. No firewalls on the server or client. I should mention that Outlook 2007 will not work for new users or existing users. If I run out of options I may reinstall the client access roll in exchange 2007. Event viewer on both the server and clients don't say anything.

Also, this didn't start happening until I removed the original Exchange 2003 server off the network... Perhaps that has something to do with it? Thanks for all your comments, replies and suggestions so far; They're greatly appreciated. PC

"Dvord Direwood" <dvord@xxxxxxxxxxx> wrote in message news:uwIHAZ3BIHA.3916@xxxxxxxxxxxxxxxxxxxxxxx
I started writing and then saw you created the user account in the domain THEN the mailbox. Perhaps you could try creating the user & mailbox through the Exchange Management Console (creating the new user there creates & links BOTH the AD user and Mailbox), that's typically how you create new users once you implement Exchange 2007. I'm sure you can do it your way but I suspect you might need to link the mailbox properly afterwards. If that doesn't help:

Well I guess I would try and find out a more specific error than what Outlook is giving you.

I assume the event viewer on both the Exchange server and the client give no indications. You could perhaps try packet-sniffing the network to see if the Exchange server is refusing to answer or if the client is not seeing the server's acknowledgement (could take you to a personal firewall issue). Perhaps it's a permissions issue on the workstation itself and you can't write to a key file someplace.


"Phil Carter" <philcarter@xxxxxxxxxxxx> wrote in message news:%23590m52BIHA.2324@xxxxxxxxxxxxxxxxxxxxxxx
On my primary Vista workstation, I've been using Outlook 2007. I created a new user on the domain and created the user a mailbox. I used OWA to login to the new mail account. I then logged off my user account and logged in to this Vista workstation as the new user. Outlook 2007 wouldn't connect. I then jumped over to my XP laptop, logged in as the new user and tried the same thing with Outlook 2003. Everything works fine. I've tried this with new users and existing users. Outlook 2007 won't work with either. Strange stuff. Outlook 2007 is failing at something Outlook 2003 is not.

Also, the automated wizard will jump in a configure everything, but it fails as well. I'm checking the box to manually configure things at this point. The automated wizard comes back with the same error messages reported in my original post. Any more ideas?

"Dvord Direwood" <dvord@xxxxxxxxxxx> wrote in message news:OQxEwf2BIHA.3900@xxxxxxxxxxxxxxxxxxxxxxx
Hrm, well the automated wizard jumps in and does the connection even from the applet.

Manual works too.

Are these new 2007 clients newly-built machines on your network? Are they recent additions to AD?

By any chance have you logged in an existing, working user to that 2007 client and see if there's any issues with the mailbox itself? I'm puzzled too.



"Dvord Direwood" <dvord@xxxxxxxxxxx> wrote in message news:Okwbic2BIHA.5980@xxxxxxxxxxxxxxxxxxxxxxx
Well, instead of doing it from the Mail control panel applet, since it was a new install of Outlook, I let the wizard find my settings. Indeed it did and found my Exchange 2007 machine without difficulty.

I also upgraded Exchange to 2007 (from 2000) and my pre-Outlook 2007 clients have no problems. I'll try another client later and see if I get any different results by using the Mail control panel applet.

"Phil Carter" <philcarter@xxxxxxxxxxxx> wrote in message news:C6243687-8197-4679-9705-038D906EC65C@xxxxxxxxxxxxxxxx
Outlook 2007 on 2 Vista workstations: Non-working.
Outlook 2007 on XP: Non-working
Outlook 2003 on XP: Works

"Dvord Direwood" <dvord@xxxxxxxxxxx> wrote in message news:ugu1CT2BIHA.5980@xxxxxxxxxxxxxxxxxxxxxxx
Are your 2007 clients running XP or Vista or both?


"Phil Carter" <philcarter@xxxxxxxxxxxx> wrote in message news:O2K6yC2BIHA.5044@xxxxxxxxxxxxxxxxxxxxxxx
I've done some more troubleshooting, and have found some weird things going on. Perhaps someone out there can shoot me some ideas. From control panel >> mail, when I add the exchange account using Outlook 2003, it works fine. Outlook 2007 is reporting the errors in the parent post, and won't connect. Now, on an Outlook 2007 client, if I put one of the domain controllers for the server name, it will resolve my name, put the exchange 2007 server in for the server name, and let me continue. Outlook 2007 will not connect after that point though. Has anyone seen any weirdness with Outlook 2003 clients able to connect, while 2007 clients unable to do so?

Thanks, PC


"Phil Carter" <philcarter@xxxxxxxxxxxx> wrote in message news:1BC4504D-9151-4F89-BC3C-4F52EA192B00@xxxxxxxxxxxxxxxx
I recently installed a new Exchange 2007 server, and migrated all the user mailboxes from the existing 2003 server over. I followed Microsoft's procedure for the migration, and for taking the original server offline. Now that I've taken the old server offline, new Outlook 2007 clients can't connect. (Old clients are working just fine.) For new clients, from Control Panel >> Mail when I add the server and mailbox name, I get the error:

"Outlook cannot log on. Verify you are connected to the network and you are using the proper server and mailbox name. The connection to Microsoft Exchange is unavailable. Outlook must be online or connected to complete this action."

and then

"The name cannot be resolved. The action cannot be completed."

Interestingly, Outlook 2003 clients work just fine! OWA also seems to be working just fine. I've checked all the Microsoft recommended tasks in Q297801 using ADSI edit, and Ldp.exe, and everything looks completely good in my directory. DNS and AD are also operating flawlessly.

What could Outlook 2007 be failing at where Outlook 2003 is working just fine?! Thanks experts!












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