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If you have changed your provider then your external IP address will have changed also. Have you asked for the A records and your MX records on your external DNS to be swapped to reflect the new ip addresses?
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Hello,<br />
I ve been running an SBS box with exchange 2003 SP2 and ISA 2004 for years. &nbsp;Its been running great. &nbsp;I have changed my internet providers so I ran the Internet connection wizard on my SBS box. &nbsp;Everything thing is working well except OWA and getting to my remote computers. &nbsp;So /exchage and /remote do not work from the outside world. &nbsp;However they work internally perfectly. &nbsp;What breaks? when you run the connection wizard IIS or ISA? &nbsp;Remote desktop works fine everything else works fine. &nbsp;Any help is appreciated
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Hello,
I ve been running an SBS box with exchange 2003 SP2 and ISA 2004 for years.  Its been running great.  I have changed my internet providers so I ran the Internet connection wizard on my SBS box.  Everything thing is working well except OWA and getting to my remote computers.  So /exchage and /remote do not work from the outside world.  However they work internally perfectly.  What breaks? when you run the connection wizard IIS or ISA?  Remote desktop works fine everything else works fine.  Any help is appreciated

If you have changed your provider then your external IP address will have changed also. Have you asked for the A records and your MX records on your external DNS to be swapped to reflect the new ip addresses?

OWA after Internet connection wizard

Small Business Server (SBS) is a line of server operating systems targeted at small businesses by bundling the operating system with a number of other Microsoft products that would normally need to be purchased or licensed separately. The most notable inclusions are Exchange, SQL Server, SharePoint and ISA/TMG (Microsoft's firewall and proxy server).

Microsoft server applications are those applications developed specifically, but not necessarily exclusively, on the Windows Server platform. In addition to well-known products like SQL Server, Exchange, Internet Information Services (IIS), Microsoft Dynamics, Forefront, Lync and Sharepoint, they include applications like Skype, BizTalk, Hyper-V, Groove and Commerce Server. Server applications are managed with the Microsoft System Center.