Exchange 2007 OWA stops working with “reason=0” error

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Outlook Web Access on Exchange Server 2007 may stop working after an Update Rollup is applied.  Users who connect to OWA may receive a browser script error or a blank page with a URL of:   https://mail.yourdomain.com/owa/auth/logon.aspx?url=https://mail.yourdomain.com/owa/&reason=0 This problem can be caused by either of these conditions: Cause #1 The Update Rollup was applied while […]

MS08-037 causes port conflicts with DNS and IAS services

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You may encounter an issue with servers running both the DNS and IAS services that have installed update MS08-037 (Vulnerabilities in DNS could allow spoofing – 953230).  The IAS services will fail to start and any authentication that relies on IAS (such as VPNs) will fail. When connecting to the IAS server with the IAS […]