Outlook 2007 is extremly slow on sbs 2008

Hi I'm running Windows 7 x64 clients with Outlook 2007 to a SBS 2008. Problem is that Outlook "talks" to the server extremely slow, on the right bottom icon it often says  "Trying to connect to microsoft exchange". This happen when connected localy on the LAN. Strange thing is that I have users connecting from outside via Outlook Anywhere (rpc over https) and it works as it should.

Any suggestion of the problem, maybe this is a sbs thing?
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Bes4dminAsked:
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Bes4dminConnect With a Mentor Author Commented:
Thanks for the answers but I sorted it out. The problem was that all the rules on the sbs firewall that began on M were removed by a program called Visma. This program was installed just an hour before the problem started (without me knowing).
So this caused exchange being unreachable from outlook via tcp/ip. Thanks for the help and merry christmas!
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Alan HardistyCo-OwnerCommented:
It could be your local Switch / Hub playing up.  Give it a reboot (warn users first and get them to save all docs and close them).
What speed is your Switch / Hub?
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Bes4dminAuthor Commented:
it's a 1GB switch, will try that, any other suggestions?
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Bes4dminAuthor Commented:
don't think it is the switch because it is only the connection between outlook and exchange that is slow all other connections work as they should.
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bitMASTERSCommented:
Check to see what dns servers are listed on the workstations.  Make sure that the SBS server is the first listed.  Any other performance issues such as file access on the server?
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Alan HardistyCo-OwnerCommented:
Yikes - just as well you discovered that as I very much doubt anyone would have come up with that as an answer!
Have a good Xmas & New Year.
Alan
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