Recently bought x51 alienware Desktop from Dell but I am having problem with the browsers. It seems that all browsers that I have intermittently fail to load web pages, partially, or very slow.

Sometime the web page fails to open on the first attempt but works flawlessly after refresh.

I have another machine at home running Windows XP and it's running fine (assuming my network is okay).

I have done few steps of troubleshooting but so far to no avail. Hope sifus here can help. Many thanks

1. Uninstalled antivirus
2. Installed new antivirus
3. Disabled firewall both antivirus and windows
4. Enabled Windows firewall only
5. Enabled Antivirus firewall only
6. Used private browsing in Mozilla
7. Used IE 64bit browser