disconnects

so for the past three days my nets been freezing every 30 second (approx) i did some ping checks with cmd and i get a request time out every other second > Ping test image it didnt use to be like this before, it was always smooth but for the past days its been jittering, my net completely shuts...

Guys, please help. I recently switched from a 2 Mbps MTNL plan to an 8 Mbps plan (Freedom 1495). I have been using the same WiFi modem since the past 5 years (model: DNA-A212, provided by MTNL). Since I have moved to the new plan, my connection has been disconnecting a lot. This is not a...