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Outlook anywhere connectivity slow on VPN

Posted on 2016-08-21
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Last Modified: 2016-08-22
Dear All,

We are using Exchange 2013 ,our users are complaining when they are using outlook anywhere from external network its working fine,but when they connect outlook after connecting to company's VPN the outlook anywhere connectivity is very slow or it does not connect at all.

what could be the reason?as i am not able to get any clue where to start troubleshooting this issues
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Question by:Sysguys
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Expert Comment

by:John Hurst
ID: 41764282
Connections through VPN are often slow because VPN uses the slow side of a standard DSL type network connection.

If you have Auto Discover set up (and you probably do), try running Outlook without connecting to VPN. It should still work.
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Author Comment

by:Sysguys
ID: 41764292
John,

Thanks for the response,yes outlook is working fine without VPN infact with good perfomance,we are using VPN for some services not for outlook anywhere,during this time when users connect outlook its very slow.

My question is ,can we do something to improve outlook perfomance when connected through VPN?
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John Hurst earned 500 total points
ID: 41764295
Our clients just avoid VPN for Outlook.

Outlook will not work any faster than any other file open or transfer over VPN. In fact, it could be slower because Outlook retrieval and syncing of the OST file means a lot of data back and forth (more than many simple transfers). We found the same issues and just avoid it.
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Author Closing Comment

by:Sysguys
ID: 41764788
thanks
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LVL 93

Expert Comment

by:John Hurst
ID: 41765131
You are very welcome and I was happy to work with you.
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