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76 posts

Master Geek


# 47389 11-Nov-2009 14:28
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I've got an interesting issue that has me perplexed...

There is an https web site that is frequently accessed by the staff here, and all but one can access it fine (using Internet Explorer). Any user logged in on this PC can not access the site using Internet Explorer. On this PC the site will not load in Internet Explorer (which is required due to activex controls) but will load in firefox. However this PC can load any other http/https site.

For the site we are trying to access, we get the following error:
Internet Explorer cannot display the webpage

What you can try:
Diagnose Connection Problems 
More information

This problem can be caused by a variety of issues, including:

  • Internet connectivity has been lost.

  • The website is temporarily unavailable.

  • The Domain Name Server (DNS) is not reachable.

  • The Domain Name Server (DNS) does not have a listing for the website's domain.

  • There might be a typing error in the address.

  • If this is an HTTPS (secure) address, click Tools, click Internet Options, click Advanced, and check to be sure the SSL and TLS protocols are enabled under the security section.

For offline users

You can still view subscribed feeds and some recently viewed webpages.
To view subscribed feeds

1.Click the Favorites Center button , click Feeds, and then click the feed you want to view.

To view recently visited webpages (might not work on all pages)

1.Click Tools, and then click Work Offline.
2.Click the Favorites Center button , click History, and then click the page you want to view.

If I click the "Diagnose Connection Problems" button, I get the error "The host may be down, or may not support a secure connection."

There is no proxy set up for the connection, and both SSL 3.0 and TLS 1.0 are allowed in the Advanced Options.

Using wireshark I can see that IE connects to the server and the certificate it transmitted. After this it is encrypted, but not much more is transmitted.

Help would be greatly appreciated!!!

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8035 posts

Uber Geek


  # 272473 12-Nov-2009 18:00
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So on the problem PC, what OS and service pack version? What version of IE?

1200 posts

Uber Geek


  # 272498 12-Nov-2009 19:42
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A Long shot, but also check the proxy settings, you may have a proxy set for HTTPS only.

Can you use IE to browse to other HTTPS sites?

Do a IE Reset, under the options. This will put IE back to a out of the box config with all default settings.

Tyler - Parnell Geek - iPhone 3G - Lenovo X301 - Kaseya - Great Western Steak House, these are some of my favourite things.


76 posts

Master Geek


  # 272623 13-Nov-2009 08:48
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OS: Windows Vista Business Service Pack 2
IE: Version 8.0.6001.18828

Proxy settings are all empty/off - I had checked. Both options are off in automatic configuration.

Yes IE on this pc can connect to other HTTPS sites.

Already done an IE reset, under multiple accounts on the PC. (Deleting personal settings in some as well)

Enabled add ons, accelerators are:
Shockwave flash
Adobe PDF Reader Link Helper
Microsoft Silverlight 3.0.40818.0
Sun Microsystems, Inc. Java(tm) Plug-In 2 SSV Helper

76 posts

Master Geek


  # 273418 16-Nov-2009 10:30
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Still haven't solved this issue. Have had the chance to use the PC through a different gateway to the internet and it still can't load this secure website.

8035 posts

Uber Geek


  # 273473 16-Nov-2009 12:18
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Sounds pretty odd, you've definately tried all the recommended methods to solve this from this KB article?

Also have you updated the root certificates via windows update?  Added the particular site to the trusted site list?

76 posts

Master Geek


  # 273511 16-Nov-2009 14:14
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Yep, it is odd to me too, and rather annoying.

Time and Date on Machine is Correct

Site in Compatibility View or Not makes no difference. Other machines with the same IE version can use the site with or without Compatibility View.

Clearing the SSL State (already attempted) made no difference.

Re-registering the .dll files either manually or using the automated "fix this problem" made no difference

Resetting IE settings either manually (already attempted) or using the automated "fix this problem" made no difference. (With or without removing personal settings)

At this stage I'm not willing to do a system restore. (I know it would probably fix it, if I choose a restore far enough back, but it could cause major problems for me)

Running a System File Checker (sfc.exe /scannow) made no difference. But reported the following:
"Beginning system scan. This process will take some time.
Beginning verification phase of system scan.
Verification 100% complete.
Windows Resource Protection found corrupt files but was unable to fix some of them.
Details are included in the CBS.Log windir\Logs\CBS\CBS.log. For example C:\Windows\Logs\CBS\CBS.log"
Log file is 34 Megs... Errors are:
"2009-11-11 12:22:48, Error Failed to find the CixTarget for Container
2009-11-11 12:22:48, Error DpxException hr=0x80070002 code=0x020109"
kb905866 is apparently for Microsoft Windows Mail Junk E-mail updates.

Root certificates are up to date, or at least no update is listed (including hidden) when checking for updates from Microsoft Update.

The site is on the trusted sites list, Have also tried it without the site on the trusted sites list. Note, other HTTPS sites still work and other machines on the same internet connection can access the site.

8035 posts

Uber Geek


  # 273605 16-Nov-2009 18:02
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Is your company using a licensing model that has support calls included, probably time to use one if they do.


76 posts

Master Geek


  # 274183 18-Nov-2009 12:04
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Unfortunately I don't believe we have support for this machine.

I'll keep working on this issue, I'm sure the solution will be interesting (I'll post here when solved)

76 posts

Master Geek


  # 280788 9-Dec-2009 13:44
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Problem now solved.

The option "System Cryptography: Use FIPS compliant algorithms for encryption, hashing and signing" had been set to enabled. (Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options)

Setting this back to disabled allowed the machine to connect to the secure website using Internet Explorer. The site has a RSA 1024bit public key. The other sites I was using to test https with all had 2048bit public keys.

8035 posts

Uber Geek


  # 280790 9-Dec-2009 13:46
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Wow that's pretty obscure, how did you figure out the problem?

76 posts

Master Geek


  # 280796 9-Dec-2009 13:54
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Long story, lots of investigation. This laptop has a unique setup here and so looking at all the differences between it and others showed Group Policy differences. Was just a matter of looking at which each one meant and then testing any that could be involved. Then testing that it hadn't broken anything.

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