Exchange 2010 owa not working for some users

I am running Exchange 2010 with Sp1 and today I have a few users that cannot access their owa or iphone active sync. The error owa shows is Exception type: system.web.httpexception, Exception message: Request timed out. I have other users who can log in just fine so not sure what could be causing it.
johnrkeanAsked:
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endital1097Connect With a Mentor Commented:
can someone else access owa from the machine they cannot?
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endital1097Commented:
i would have them try pinging the exchange cas server then as long as the name resolved attempt to browse to the site
after the failure, check the iis logs on the cas server for their connection attempt (search log for their ip address)
post any http errors you see (sample log entry included)
2010-09-01 23:59:59 ::1 GET /owa - 443 - ::1 Mozilla/4.0+(compatible;+MSIE+8.0;+Windows+NT+6.1;+WOW64;+Trident/4.0;+SLCC2;+.NET+CLR+2.0.50727;+.NET+CLR+3.5.30729;+.NET+CLR+3.0.30729) 301 0 0 27000
2010-09-01 23:59:59 ::1 GET /owa/ - 443 - ::1 Mozilla/4.0+(compatible;+MSIE+8.0;+Windows+NT+6.1;+WOW64;+Trident/4.0;+SLCC2;+.NET+CLR+2.0.50727;+.NET+CLR+3.5.30729;+.NET+CLR+3.0.30729) 401 2 5 109
2010-09-01 23:59:59 ::1 GET /owa/auth/logon.aspx url=https://localhost/owa/&reason=0 443 - ::1 Mozilla/4.0+(compatible;+MSIE+8.0;+Windows+NT+6.1;+WOW64;+Trident/4.0;+SLCC2;+.NET+CLR+2.0.50727;+.NET+CLR+3.5.30729;+.NET+CLR+3.0.30729) 200 0 0 2640
2010-09-01 23:59:59 ::1 GET /owa/14.1.218.13/themes/resources/logon.css - 443 - ::1 Mozilla/4.0+(compatible;+MSIE+8.0;+Windows+NT+6.1;+WOW64;+Trident/4.0;+SLCC2;+.NET+CLR+2.0.50727;+.NET+CLR+3.5.30729;+.NET+CLR+3.0.30729) 200 0 0 78

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johnrkeanAuthor Commented:
I tried using the shell to test the connection.

Test-OwaConnectivity -MailboxCredential (get-credential domain\username) -URL https://server.domain.com/owa -TrustAnySSLCertificate | FL
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johnrkeanAuthor Commented:
Yes, I was able to use my account to log into the owa to check my mail. It seems to only be one account. I decided to backup the users mailbox into a .pst, delete the mailbox and user account. Created a new user account and mailbox, imported the pst and everything is working for owa now. Not sure what went wrong with the account.
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johnrkeanAuthor Commented:
Deleting the user account and mailbox fixed the probelm.
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