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I've been having this really strange problem with my internet connection.

After a period of time (can be 10 min, can be 3 hours), I suddenly can't browse, but I can still ping (by IP and hostname) pages, Skype stay connected, FB Messenger (desktop) also, even I can still play League of Legends online without getting disconnected, but I can't browse any page. Sometimes, already open pages keep some functionality (Ajax asynchronous calls or Javascripts, even loading more stuff like tweets or posts, but not the pictures), but any new HTTP requests fail.

After a while, sometimes, I can browse again. If not, I have to restart my computer and that always fix it.

I happens with any WiFi or Ethernet connection, and is just my computer the one with the problem.

I've already upgraded all drivers and uninstall my antivirus, and still happens. I don't have any proxy configured. I've tried to run some netsh commands that I found on other posts, but no success.

Most of the other problems I've seen are about not being able to connect at all, but the strange thing in my case is that it works perfectly at first, then crashes, then sometimes comes back. The other thing that I've noticed is that when my laptop goes to Sleep, after waking it up, I never can browse.

What do I need to do to diagnose this?

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Even though your ping by name seems to work, have you tried using a different DNS server to see if it has any effect? –  techie007 Oct 9 '13 at 18:02
    
@Ralexrdz - Contact your ISP make sure its not the quality of the DSL or Cable signal. Once you eliminate outside forces you can look at your actual software on your computer being the cause of this problem. –  Ramhound Oct 9 '13 at 18:24
    
@techie007 - how do I change the DNS server? –  Ralexrdz Oct 9 '13 at 19:06
    
@Ramhound - Is not just in my home or work network, is in any network –  Ralexrdz Oct 9 '13 at 19:07
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