CRM Dynamics 2010 SSL Website Fails

Points of My Scenario:
1. I am troubleshooting CRM Dynamics website failure, which occurred after 3 un-installable Windows updates (KB4025337, KB4022722, and KB4034679).

2. Users get the following error when attempting to connect to website: "This page cannot be displayed. Turn on TLS1.0, TLS 1.1, and TLS 1.2 in Advanced settings and try connecting to <https://website> again"

3. TLS 1.0, TLS 1.1, and TLS 1.2 were all always checked (turned on) in the Advanced tab of the Internet Options dialog box.

4. In IIS (on a Windows Server 2008 R2 SP1 member server) the "Microsoft Dynamics CRM" website bindings include http (over port 'wxyz'), and https (over port 'efgh').

5. Surprisingly, the "Browse *:wxyz (http)" link works, WHILE the "Browse a.b.c.d:efgh (https)" link  fails with the generic error "Internet Explorer cannot display the webpage"

6. When the user tests the non-SSL version of the website, (s)he gets the error "Not Authorized. HTTP Error 401. The requested resource requires user authentication."

7. The https (SSL) and the http (regular, unsecure) links are identical - so, whereas the https (SSL) link complains about the absence of settings that are truly present, http complains that the user is not authorized.

QUESTION: What shall I do next to troubleshoot/resolve this failure of the CRM Dynamics website?

I am grateful for any help I can get. :-)
waltforbesSenior IT SpecialistAsked:
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Feridun KadirPrincipal ConsultantCommented:
I think you have several things to resolve. Firstly Dynamics CRM only supports one set of binding, http or https. So you need to update IIS to use one or the other.  Secondly, have you configured an Internet facing deployment? If so, you also need to consider SSL certificates. Even if you haven't configured an IFD but want to use https then we need to check SSL.

So, first please confirm whether you want to use http or https?
If you are using IFD, you must use https

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waltforbesSenior IT SpecialistAuthor Commented:
Many thanks Feridun...Great news! I have resolved the issue:
1. The CRM Dynamics website has been working for years.
2. The failure happened after Windows updates
3. I just resolved the issue (~20 minutes ago) by removing and re-applying the server-level website-level certificates.

Many thanks for your prompt response and suggestions.

@Moderator: what do I do with the points, since I have resolved my own question? I would like to award them to Feridun for responding so promptly with well thought-out insights, and suggestions. What is the protocol.

waltforbesSenior IT SpecialistAuthor Commented:
Many thanks for your prompt and insightful response!
Feridun KadirPrincipal ConsultantCommented:
Thanks for the points and glad to hear that you got it working. I think Experts Exchange allows you to share points across solutions so you could have allocated some points to me and some to you. Perhaps next time!
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