Zend certified PHP/Magento developer

Unstable connection

last weeks I noticed that my connection is so unstable. I get all the time connection timeout on pages, I ping google.com and ping 8.8.8.8 and i get request timeout but after 4-5 minutes working again and then again request timeout.

Games not loading, they load for 1 minute and then dont load again.

Tried to restart my router/pc lot of times, clean ethernet cables from dust, change cables, router is not hot.

Edit: Tried what @john suggested: (1) netsh int ip reset c:resetlog.txt (2) ipconfig /flushdns (3) restart the computer and Test didnt fix the problem.

Do you guys have any clue what is going on? its crazy problem!