BleepingComputer.com: Internet Connection Interrupted

Hi guys ,This is my first post as i am trying to find out if i have some Malware, Spyware, Virus and trojans or my firewall itself is restricting me.

Problem:
1) Internet connection goes down for some time and regains .
2) Internet Connection Interrupted: The connection to the server was reset while the page was loading. error message in browser while just browsing internet,

effect:
Poor video quality while using Skype and sometimes disconnection
unable to complete ticket booking

action:
Antivirus(Nod32) , Antimalware(malwarebytes) scan and fixed all problems ,
no more bugs but still have the same problem no improvement.

Alternative
using my iphone in Wifi no problem what so ever in the connection , so should be something in my computer.

Help needed desperately