Outlook 2010 Sending Attachments hang outlook

When I am remotely connected back to system using Cisco VPN and trying to send E-Mails via Outlook 2010 x32 the message hangs. sometimes the message goes through more than not it just hangs. Size and file types varies. Using Windows 7 x64
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Raymond PengSystems EngineerCommented:
Have you checked for latest office updates / service packs as well as Windows updates?

Are you able to use webmail to send w/o issues?  Can you try clearing out your OLK folder / temp IE files as well?  

Try disabling addins in Outlook by running Outlook /safe from start > run and see if issues persist.
AmitIT ArchitectCommented:
Apart from above, you must also check if you AV is doing some scanning process. That might also slow down the process. Also use cached mode, so Outlook doesn't need to sync again and again with the server. Cached mode might help to resolve it.
Ray_HWL2Author Commented:
Sorry should have added more information. diabled Addins. uninstalled AV. Recreated Windows User Account. Cached mode kills bandwidth... so not cache mode
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Raymond PengSystems EngineerCommented:
system is all up to date?
AmitIT ArchitectCommented:
Ok then goto more settings in the Email Account setting from control panel, click on general tab and increase the timeout value to 120 seconds. Test the result again.
Ray_HWL2Author Commented:
System is up to date with all MS Updates. Set the Timeout value to 120... no go..
AmitIT ArchitectCommented:
Last option, to reinstall the Office again. Corruption in outlook could be the reason also, and i highly suggest to use cache mode. It is one time task only, when it creates the OST. You can do it in office lan and then use it. Again, it comes down the connection speed between client and server. Before you do anything futher. Run below command and check the results.

outlook /rpcdiag

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