Hello everyone!

I have a problem with my spiking as it is said in title. I am active player so it annoys me. Last 2 years of playing I never had so big problems with my pings. Spike goes from 60 - 4000 and more. I am playing on wifi but router is in next room, not far. I tried to close my anti-virus, put on/off mode on my router, closed everything.. only Fg were working and nothing helps..so any ideas would be appreciated.

Thank you very much!