Outlook Anywhere on SBS 2008 - maximum number of client connections?

I've recently migrated from a SBS 2003 server hosting remote user's mail via POP3/SMTP to a SBS 2008 server using RPC over HTTPS (Outlook Anywhere) for clients to get mail.  All clients are running Outlook 2007.  For some reason, of my 25 or so users, approximately 5 at a time are unable to connect to the server.  It's never the same 5 users, it seems like it's just the last 5 to try to connect each time.  The only way I've found to get these users connected is to do an iisreset to restart services.  There are no related events in the event log that I've been able to find and the only error code I've found when enabling logging in the Outlook client is 0x80040115, which may or may not be related (I couldn't find anything online related to this issue).  Thanks in advance for any help you can give.
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IntellecTechsAsked:
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IntellecTechsConnect With a Mentor Author Commented:
So after a quick search, I ran across this quote:
You do have to be legal.  You do have to be legit.  You need to buy the cals to be legal for what you need.  But thankfully there isn't a console anymore to enter cals.  It's up to you to find a secure and safe place to keep those documents.

Found here: http://msmvps.com/blogs/bradley/archive/2008/11/13/putting-those-cals-in-a-lockbox.aspx

As I suspected, SBS2008 does not require that you enter the information for your CALs.  CALs can not be the issue here.

I have however implemented the fix I found here:
http://blogs.technet.com/sbs/archive/2009/01/28/slow-connectivity-for-outlook-anywhere-and-sites-that-use-the-sbs-web-applications-app-pool.aspx

Now I'm going to wait to see if users are still having issues in the morning.
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MesthaCommented:
No connection limits that I am aware of, certainly not by default.
I would be looking a the firewall to see if that shows anything.

Run the SBS best practises tool against the server to be safe. That will flag anything wrong.

Simon.
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IntellecTechsAuthor Commented:
I went through all the alerts in the best practices analyzer, I didn't see anything related to exchange or iis operation (except something about a DCOM error with IIS WAM Reg, which I fixed but did not solve the issue).  Still at a loss here.  I did have the old SBS server still on the network, but I finished the migration last night and it still isn't working right (old server is now disconnected from the network).  Any other suggestions?
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MesthaCommented:
If the server is set to default settings then it has to be outside of IIS. As I wrote above, the firewall is the first place I would be looking.

You do have enough CALs on the server? That is the only other thing that could be doing it.

Simon.
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IntellecTechsAuthor Commented:
Well, since the problem occurs for users both inside and outside the firewall, I'm guessing it's unrelated.

CALs?  I was under the impression that in 2008 CALs are documents only.  Is there a place in SBS2008 to input CALs?  I've looked everywhere.
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MesthaCommented:
Ah ha.
SBS CALS are hard enforced. It is only paper on the full product.

The license tool is in the main management console, I can't remember the exact place, I haven't got an SBS 2008 to hand to check. You have to enter in the keys that you received for the SBS CALs.

Out of the box it only has 5 CALs, which would match.

Simon.
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MesthaCommented:
That has changed then. It was required in SBS 2003, but I haven't done a massive amount with SBS 2008.

Simon.
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IntellecTechsAuthor Commented:
None of my users are complaining of Outlook issues today.  Looks like the web app pool reg fix did the trick.

Thanks for the help anyway.
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