Router Connection Interrupting Every 15 Seconds?

However, only some of them remain, so I will describe them again here.My router (Belkin) was working fine for over a year. Everything seemed to be working just fine, then this happened to me once but the problem disappeared itself. However, day after that, it happened again after I restarted my notebook.Basically, my connection drops out for few seconds every few tens of seconds. This means that I get regular lags several times within every single minute. Here is screen from "ping [routerIP] -t".imgur: the simple image sharerQuite frustrating, huh... This is only wireless-related issue, connecting to the router directly using RJ-45 solves the problem.

I have tried restarting and reconfiguring the router, including changing SSID, Channels, turning off security, restarting and restoring factory defaults.My notebook seems to be the only PC having this issue (however, I have not been able to test that out yet, but the problems seemed to come exactly after a PC restart, very unlikely a coincidence). I have tried removing windows network profiles, restarting several times, setting a static IP and removing browser proxy settingsI have been trying to google the solution, but all I found were already known (and not working) solutions, also, everyone seems to be having a less frequent drops (few times in a day, or an hour, I would love that xD).