Can't not access to secure web sites from Vista

Hi Experts,

I have 3 computers at home.
1) Windows XP sp2 (using IE7 upgraded from IE6)
2) Windows 2003 Std sp1 (using IE7 also upgraded from IE6)
3) Windows Vista Business (IE7 Already preinstalled when the system was
purchased).

For some reasons, my XP and Windows 2003 can access to my company's web mail
(https://webmail.companyname.com).
Only my Vista is not able to access to it. No firewall is set on this
computer.
I can also access to some other secure webs, such as bank and etc, no
problem.

Any ideas??
Thank you in advance.

Try one of the following suggestions:

1. Clean the cache, cookies, history, temp files.



2. Disable parental controls.



3. Add the URL to the Trusted Sites security zone.



If above suggestions don’t fix the problem, try to use FireFox because some web sites and coding may not be compatible with IE 7.


Bob Lin, MS-MVP, MCSE & CNE
Networking, Internet, Routing, VPN Troubleshooting on http://www.ChicagoTech.net
How to Setup Windows, Network, VPN & Remote Access on http://www.HowToNetworking.com
"R.T" <RT@discussions.microsoft.com> wrote in message news:A10E1920-171C-4DD6-8460-4E348C2962DC@microsoft.com...
Hi Experts,

I have 3 computers at home.
1) Windows XP sp2 (using IE7 upgraded from IE6)
2) Windows 2003 Std sp1 (using IE7 also upgraded from IE6)
3) Windows Vista Business (IE7 Already preinstalled when the system was
purchased).

For some reasons, my XP and Windows 2003 can access to my company's web mail
(https://webmail.companyname.com).
Only my Vista is not able to access to it. No firewall is set on this
computer.
I can also access to some other secure webs, such as bank and etc, no
problem.

Any ideas??
Thank you in advance.

The problem is that I am using "IE7" on my XP and Windows 2003 and it works
fine. It's just the Windows Vista is not working. I am thinking if it's IE7
issue, then, it should not be working when I try to access to secure sites
from my IE7 on Xp or Windows 2003 computers.

cheers,
RT

"Robert L [MVP - Networking]" wrote:

> Try one of the following suggestions:
>
> 1. Clean the cache, cookies, history, temp files.
>
>
>
> 2. Disable parental controls.
>
>
>
> 3. Add the URL to the Trusted Sites security zone.
>
>
>
> If above suggestions don’t fix the problem, try to use FireFox because some web sites and coding may not be compatible with IE 7.
>
>
> Bob Lin, MS-MVP, MCSE & CNE
> Networking, Internet, Routing, VPN Troubleshooting on http://www.ChicagoTech.net
> How to Setup Windows, Network, VPN & Remote Access on http://www.HowToNetworking.com
> "R.T" <RT@discussions.microsoft.com> wrote in message news:A10E1920-171C-4DD6-8460-4E348C2962DC@microsoft.com...
> Hi Experts,
>
> I have 3 computers at home.
> 1) Windows XP sp2 (using IE7 upgraded from IE6)
> 2) Windows 2003 Std sp1 (using IE7 also upgraded from IE6)
> 3) Windows Vista Business (IE7 Already preinstalled when the system was
> purchased).
>
> For some reasons, my XP and Windows 2003 can access to my company's web mail
> (https://webmail.companyname.com).
> Only my Vista is not able to access to it. No firewall is set on this
> computer.
> I can also access to some other secure webs, such as bank and etc, no
> problem.
>
> Any ideas??
> Thank you in advance