Hello Tom,
Thanks for your post.
I am not sure if you have referred to the KB917686 and finished all the suggested 5 steps. If not, please go through the KB917686 and follow it step by step, since besides resetting the passwords for
IUSR_server and IWAM_server accounts there are still a few more settings to check, e.g. make sure IUSR_server and IWAM_server accounts are in the local Users group.
Error message when users try to log on to an Exchange Server 2003 organization by using Outlook Web Access: "440 Login Timeout"
http://support.microsoft.com/kb/917686
Moreover, please check the OWA virtual directory permission.
1) Open IIS
2) Expend Default web site
3) Right click on OWA virtual directory
4) Select Edit permission
5) Now select Security
6) Add authenticated users and give read access to it
7) Now users will be able to access the OWA, restart IIS service using "iisreset /noforce".
Hope this helps.
Best regards,
Robbin Meng(MSFT)
Microsoft Online Newsgroup Support
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