Problem accessing Sharepoint site from the internet

Posted on 2009-04-22
Last Modified: 2012-05-06
Hi All, hope someone can help as I'm pulling what's left of my hair out with this problem.

I have a new SBS 2008 server on which the client is wanting to use the Sharepoint site extensively.  The not only require it to work for users on the LAN but also for external staff and clients.

At this time the sharepoint site works perfectly if accessed from the LAN either by going to the http://companyweb link or they can go to the remote web workplace by entering and logging in there and then again into the Internal company website.

The problems occur when the users are on the internet.

At this time I can enter the URL for the remote web workplace and will be able to log into it.  From there I can easily click on the Outlook Web Access part and that works fine.

If I click the Internal website link I have 2 problems.

1.  When this link was partly working some days ago it wouldn't display on the screen, however if I entered into the browse I was prompted for a username and password to log in and thereafter I would get access to the intranet with no issues.  I understand that the issue with the link is related to the alternate access mappings and that I need to add something in there, however no matter what I try Sharepoint Central Admin just tells me its an invalid URL format and won't let me continue with it.

2.  Although that link above used to work it now doesn't for some unknown reason to me.  I even used to be able to enter https://IP ADDRESS:987/default.aspx and was able to get access to the site but now when I try it IE just displays an "Internet Explorer could not display the webpage" error.

The router/firewall has port 987 open and forwarded to the SBS server.  This was opened weeks ago and has never changed.  Port 25 and 443 are also opened on the firewall and forwarded to the server and they appear to be working.

I have never configured anything in the Windows firewall on the server, its running as default and from what I can see it has port 987 open.

Bitdefender Anti virus for windows server is installed.  So far as I know this doesn't have a firewall but I will be checking that with them should it become a possible source of the issue.

The only things that I have done which might have affected it were to do with getting an SSL certificate installed on the server.  In order to do that I had to run a couple of wizards from the SBS Console.  First was the Connect to the internet wizard, then the setup your internet address and finally the add a secure certificate one.

If anyone could point me in the right direction on these problems I would be eternally grateful.
Question by:stevencUK
    LVL 19

    Expert Comment

    Can you post a screeny or a list of your alternate acces mapping settings?

    Author Comment

    On the Public Zone URL's we have:






    Author Comment

    Typo in the Intranet one, should read

    Accepted Solution

    Problem solved.

    Turned out the router config had corrupted and although it looked OK on the console but another issue forced me to factory reset it and rebuilt it from scratch.  Fixed the issue.

    Wish I'd done it 2 weeks ago!

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