constant lag while playing maps , data usage 0

Recently im having alot of problems with ping . While im standing it town is constalty under 120 , but if i go to maps or pvp something happens and the data usage ( im on wifi , not mobile data ) suddently goes to 0 for around 10s and the reconnects . My wifi speed is very high and im sure that that is not the problem . after reconnecting the ping is around 100-120 as usually and in a couple mins the connection drops again . Anybody knows what is causing this ?

If you still got this issue....there are some apps that stabilizes your connection ...then also to stop other background traffic besides al helps too