Our (new) installation seems to be working great for the 'insiders', but for outside (anon) users seem to have trouble with MEET.  When they put the URL in IE, it launches their local copy of Lync, but adding the ?sl= or ?sl=1 to the end of the string causes an "IE cannot display the website" error.  The page appears to load (a flash of the Lync logo), then goes blank (Internet Explorer cannot display the webpage). Mind you, we are in the middle of installation and this is ongoing testing as we progress outward.  The TMG proxy is currently pointing to the Director.  Tried pointing it to the Lync FE pool, same results.  We have tried 2 different workstations (Vista w/IE 8 and Win7 w/IE9) with the same results.

The edge server seems to be working ok, as 'remote users' can authenticate and connect with Lync on the external workstation.

We are an isolated network (no internet connection at all), which makes it difficult to test with some of the recommended links I have seen with similar issues.  However, if there is a program that will test the setup that is downloadable, that may work.

Current setup:  Enterprise FE Pool (single server), Director, Edge (2 NIC), RP (TMG w/single NIC).  Simple URLs are meet.<domain> and dialin.<domain>, and the internal CA is used for all certificates (testing purposes).  yes, the Root-CA cert was imported to the workstations prior to testing.

Thanks for any ideas/pointers/recommendations

Mike

Just to be sure are you adding it to the very end of the meeting URL:

https://meet.company.com/username/h4frt7gf?sl=1

If an external user can connect to a meeting then it should be working. It should load a web page where a user can join using a web browser or download Lync Attendee. Anything in the event logs or IIS logs?

Hi,

1. Please try the issue on a machine that did not install Lync 2010 to see if Lync web app can be started normally.

2. If not, please make sure the latest version of Silverlight has been installed.

Which version of IE did you use?

Use the 32 bit IE and not the 64 bit for testing.

Just to be sure are you adding it to the very end of the meeting URL:

https://meet.company.com/username/h4frt7gf?sl=1

If an external user can connect to a meeting then it should be working. It should load a web page where a user can join using a web browser or download Lync Attendee. Anything in the event logs or IIS logs?

Yes, placing it at the end of the URL.  The web page starts to load, you can (for an instant) see the Lync logo, but then it changes and says it can't display the page.

Nothing jumps out from the event logs on either the Reverse Proxy or the workstation.  IIS logs show either 200 or 304...

Which version of IE did you use?

Use the 32 bit IE and not the 64 bit for te

Hi,

1. Please try the issue on a machine that did not install Lync 2010 to see if Lync web app can be started normally.

2. If not, please make sure the latest version of Silverlight has been installed.

I think you got me here.  Don't know what you are asking.  If you mean have I looked through the "Getting Help" pointers from the control panel, no I haven't as the network I'm running on does not have internet connection.  If you are asking if I have checked "Show Lync Attendee download link" and "Show the link for user to join meeting using legacy client", then yes. If you are asking if the Simple URLs work from inside, the answer is yes.  They just don't seem to be working through the TMG.  If it's something else, then I don't know (sorry)

I have looked at documentation from the Lync pages on MS and searched the forums but with no real luck in fixing the issue

Firefox is presenting a slightly different error than IE did.  Both start the local Lync client without the ?sl=1 entry.  But WITH the ?sl=1 entry IE just said it couldn't find the page.  FF is telling me it can't locate my FE server (which it shouldn't).

Well, using the additional info from FF, I found the problem.  I found it because FF brought up the page that let me choose to use the WebApp.  The link for it was pointing to our FE pool external website name, which (unlike what I was told!) was not in DNS.  Seems I hit on that earlier, but was looking at it incorrectly.  Thought it was the FE server name but is actually the FE external website name (sigh). 

IE 9 still doesn't work if I put the ?sl=1 on the end, where FF provides a screen to use the Web browser or download (fm MS) the Attendee.

Now I'm off to beat my DNS guy senseless.

To all that replied and tried to help:  THANK YOU.