Reset Internet Explorer Browser
Tools > Internet Options
Click on Connections Tab
Click LAN Settings
Ensure Automatically Detect Settings is the only radio button ticked.
Click OK
Start > Type CMD
Right Click on CMD and select Run As Administrator (Windows Vista, 7 & 8)
Type or copy/past the following commands pressing enter after each one
1.netsh int tcp set heuristics disabled
2.netsh int tcp set global autotuninglevel=disabled
If you haven't already, Disable Remote Differential Compression (Many users state this speeds up file transfers and network transfer speeds).
Start > Control Panel > Programs and Features > Uninstall Program
Click on Turn Windows Features On and Off
Uncheck Remote Differential Compression
Wait for Windows to disable
Click Ok
Reboot computer and retry opening files.
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