Hi Boopathi subramaniam
Thanks for posting.
In order to assist you better I would need answers to the following questions.
1) What kind of an internet connection are you using? Is it a wired connection or is it a cable connection?
2) Does this happen all the time or at certain instances. For e.g. when you watch online videos.
However you can boot into the safe mode with networking and check if the problem still persists.
Here are certain links which you might want to take a look at.
**a)**Advanced startup options (including safe mode)
http://windowshelp.microsoft.com/Windows/en-US/Help/f9c50a72-04ec-4088-9fd4-a4f979eef5a71033.mspx
b) Start you computer in safe mode
http://windowshelp.microsoft.com/Windows/en-US/Help/323ef48f-7b93-4079-a48a-5c58eec904a11033.mspx
c) How to troubleshoot compatibility problems that affect Internet Explorer 7 in Windows Vista
http://support.microsoft.com/default.aspx/kb/936214
**d)**The below mentioned article is to reset the internet settings and contains steps for resetting automatically and manually.
The automatic section has a “Fix It” tool. Try that out first and only if it fails, then reset the internet settings manually.
Reset Internet Explorer 7 settings
http://windowshelp.microsoft.com/Windows/en-US/Help/81fe3b46-2460-459e-b826-8f134a7fe1771033.mspx
**e)**How to troubleshoot network connectivity problems in Internet Explorer
http://support.microsoft.com/kb/936211/
Regards,
Avash M
Microsoft Answers Support Engineer
Visit our Microsoft Answers Feedback Forum and let us know what you think.