Outlook 2010/Exchange 2010 Slow to open attachments

We have a client running a brand new SBS 2011 server running Exchange 2010 and the CEO has a new Windows 7 laptop running Outlook 2010.

When opening an attachment (in this case a photo of less than 0.5MB - small file size) it takes almost 30 seconds to open whilst connected to the local network.

If he takes his laptop offsite and therefore not connected directly to LAN the attachment opens considerably faster.

Because the laptop and the server are brand new and both of reasonable spec this is odd.

Any suggestions?
kacklandAsked:
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Manpreet SIngh KhatraSolutions Architect, Project LeadCommented:
As for the PFs he used these with the previous server and is convinced it was faster before he changed his laptop and WE changed the server. Always a difficult one to explain - even after years I still struggle :-)  ..... AGREE !!

Keep me updated with your findings.

- Rancy
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Manpreet SIngh KhatraSolutions Architect, Project LeadCommented:
What if he tries to open the Attachment using OWA\Webmail ?
What is his Mailbox size ?
How many PST's does he has ?
Did you try creating new Outlook profile ?
What is the AV on his machine ?
What is the network speed and is the Outlook in cache or Online ??

- Rancy
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kacklandAuthor Commented:
Hi Rancy,

Will try OWA - suspect this to be quicker but will confirm.

Not sure on mailbox size - not able to check at the moment - suspect around 4GB max although he is pretty tidy with e-mail.

He doesnt have any other PST files open - just the OST

The Outlook profile is only a month or so old

The AV is based on Vipre but does not have any Outlook related addins - I have disabled the real time protection today but yet to find out of this has improved as a result or not yet.

Network connection speed is 100mbps

Outlook is setup to cache as he uses the laptop offsite - assuming this is what you mean?

Thanks for helping me out.

krackland
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Manpreet SIngh KhatraSolutions Architect, Project LeadCommented:
Check the size of the OST :)

The AV is based on Vipre but does not have any Outlook related addins - I have disabled the real time protection today but yet to find out of this has improved as a result or not yet - Preferable restart the Users machines as at times only way to break some sync's is to restart the machine.

Outlook is setup to cache as he uses the laptop offsite - assuming this is what you mean? - Thats what i was looking for and Good :)

Hope there isnt any additional Mailboxes in his Outlook nor Any PF's added as favorites :)

- Rancy
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kacklandAuthor Commented:
There are PFs added to favourites and there is no way he would agree to remove them.

If it is fine when offsite would it suggest that it has a local copy of the attachments and so quicker to open? When onsite its transferring the attachment accross the network from the Exchange server and so thats where the time lag is?
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Manpreet SIngh KhatraSolutions Architect, Project LeadCommented:
There are PFs added to favourites and there is no way he would agree to remove them - What is their size ? Looks if the OST gets too BIG it could be possible corrupted and cause wired issues.

Lets check his Mailbox and OST size and understand whats the difference :)

If it is fine when offsite would it suggest that it has a local copy of the attachments and so quicker to open? - Its simply like cache and not trying to get any info from server when disconnected to Network so could be a bit different.

- Rancy
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kacklandAuthor Commented:
I guess if I can try to get him on a 1GBps LAN link rather than 100Mbps this can only help - question is how much and probably not going to know till I try.

So if it detects a local connection it will use that rather than cache?

As for the PFs he used these with the previous server and is convinced it was faster before he changed his laptop and WE changed the server. Always a difficult one to explain - even after years I still struggle :-)
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kacklandAuthor Commented:
Will do and thank-you so far.
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