Vista Wireless issue

I have a problem with Vista laptops not authenticating wirelessly to my 3COM WX-2200 wireless switch.  It connects to it, but when you attempt to access the Internet you are supposed to be prompted with a username and password to authenticate into the switch.  Then it will let you browse websites.  People with Vista laptops are never prompted with this logon page.  I get the typical IE7 Certificate error page saying, There is a problem with this website's security certificate.  Then you click on "Continue to this website (not recommended)."  After clicking on that, the page just times out and never loads.  This is NOT the issue with anything other than Vista machines.  On pre-Vista OS', I am prompted with the 3Com logon page after clicking on "Continue to this website (not recommended)".  

 I have tried Mozilla Firefox, just to see if it was IE settings, and disabled most security settings with no success.  Anyone that comes into my building with a Vista machine cannot access the Internet wirelessly right now.  Does anyone know what in Vista is not allowing this logon page to load?  
SSEHelpDeskAsked:
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LeeTutorretiredCommented:
I searched through the 3Com site to see if your wireless switch is compatible with Windows Vista, but I could not find any such information.  Perhaps you would be more successful in contacting 3Com support to find this information out.  See these MS articles:

http://support.microsoft.com/default.aspx?scid=kb;en-us;928233
Windows Vista cannot obtain an IP address from certain routers or from certain non-Microsoft DHCP servers

http://support.microsoft.com/default.aspx?scid=kb;en-us;932134
An outdated network router may not function correctly when you use it together with new networking features in Windows Vista
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sarangk_14Commented:
If your problem is related entirely to Security Certificates/ Certificate Services;
This is what the 3Com KB has to say about the Problem.

Problem: How to use Certificate Services Web enrolment pages together with Windows Vista

Cause: The Windows Server 2003 Certificate Services Web enrollment functionality relies on an ActiveX control that is named Xenroll. This ActiveX control is available in Microsoft Windows 2000 and in later versions of Windows. However, Xenroll has been deprecated in Windows Vista. The sample certificate enrollment Web pages that are included with the original release version of Microsoft Windows Server 2003, with Windows Server 2003 Service Pack 1 (SP1), and with Windows Server 2003 Service Pack 2 (SP2) are not designed to handle the change in how Windows Vista performs Web-based certificate enrolment operations.

Solution: http://support.microsoft.com/?kbid=922706


Another possible point is:

Are you using 3Com Network Access Manager?

If you are, then you may find this document of some use:

http://support.3com.com/documents/netmgr/ns/NSReadme_v5_2_sp3.pdf

Page 2 (System Requirements) may be of particular interest to you.

Hope this helps. Comments/suggestions/corrections are welcome.
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LeeTutorretiredCommented:
SSEHelpDesk, any feedback?
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SSEHelpDeskAuthor Commented:
Thanks for the suggestions.  However, I don't think these help in my situation.  The client laptops do pick up an IP address, and do connect to the network without a problem.  They just can't get to the 3Com logon page that the WX2200 requires before browsing.  It appears to be something security related with the Certificate, and only with Vista.    I am not using Network Access Manager here.
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sarangk_14Commented:
I suppose, the first part of my comment should provide some useful information about that.
Let me reproduce the information:

If your problem is related entirely to Security Certificates/ Certificate Services;
This is what the 3Com KB has to say about the Problem.

Problem: How to use Certificate Services Web enrolment pages together with Windows Vista

Cause: The Windows Server 2003 Certificate Services Web enrollment functionality relies on an ActiveX control that is named Xenroll. This ActiveX control is available in Microsoft Windows 2000 and in later versions of Windows. However, Xenroll has been deprecated in Windows Vista. The sample certificate enrollment Web pages that are included with the original release version of Microsoft Windows Server 2003, with Windows Server 2003 Service Pack 1 (SP1), and with Windows Server 2003 Service Pack 2 (SP2) are not designed to handle the change in how Windows Vista performs Web-based certificate enrolment operations.

Solution: http://support.microsoft.com/?kbid=922706

Hope this helps
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SSEHelpDeskAuthor Commented:
Windows Server 2003 is not involved here though.  This article is referring to Certificate Services on Server 2003.  These Vista clients are only connecting to the 3Com WX2200 device, that's where the certificate would be.
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SSEHelpDeskAuthor Commented:
One interesting finding:  Someone that has Vista Service Pack1 was able to get the logon page.  Of course SP1 has only been released as a beta to some testing groups.
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PUNKYCommented:
I dont think it would help with service pack, in fact, I have bunch of Vista PCs at work that I put on other wireless cards and network just works fine. Some Intel device built-in in some laptop sometime will get you in trouble. Get a cheap PCMCIA wireless card and try that see if it works.

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YGregersenCommented:
Does the website in question require an Active X component to be installed? Usually security website do. It may be that Vista or something else is blocking the site from advertising the ActiveX component. Double Check your firewall in Vista and add the IP address of the page to the exceptions list.
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SSEHelpDeskAuthor Commented:
I have finally resolved this.  I upgraded the firmware on the WX2200 Wireless Switch.  Works like a charm now.  Thanks for all the suggestions.
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Computer101Commented:
PAQed with points refunded (500)

Computer101
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