Internet connected, most websites not working

[dcsantiago]

HI there. 2 days ago, my PC started to present this problem: Internet is connected (cable), but most websites won't load. When trying to connect, it presents some kind of time expired error. When I ping, some websites will give good response and other wont and they will vary over time.
What did I try to do:
1) Use other programs. I've tried Chrome, IE and Firefox, all present similar problems.
2) Reset cookies, etc
3) Run antivirus, antimalware
4) Reset the socket using cmd (I could only use power shell, since my pc wouldn't find resetlog.txt)
5) Reinstall the mobo drivers
6) Checked the cables

Nothing worked! To worsen things up, I uploaded to windows 10 while having this problem, hoping that this would fix the problem, but it still the same.

What should I do next? Reinstall windows? buy an ethernet card?
Please help!

 

[chockomonkey]

Have you set any DNS shit in your router or on your connection? Is there a proxy set up that you need to disable?

 

[dcsantiago]

I followed some other posts to flush the dns, but to be completely honest, I don't have a complete understanding on what is happening there.

BTW, I replaced the cmos battery around the same time the problem started. Could this have something to do with the probem?

 

[chockomonkey]

Yes... Check your bios time and date, then your windows time and date

 

[gimp]

are you connected to a router, or directly to the modem?
do other devices experience the same issue, or just this machine?

 

[cyclone3d]

Run the command prompt as administrator.

Then type in this command and hit return and then reboot.

netsh int ip reset

That will reset your TCP/IP stack.

Not all websites will be able to be pinged. Just depends on how they have the web server set up.

 

[chockomonkey]

Did you fix it?