Full signal strength but can't access internet

My modem signal strength is full Even signal light do not fluctuates but can't access internet or browsing is worse than dial up.

In the 1st month i was not facing browsing issue and wateen support says coverage not available in your area. You can get refund.

What's your CINR and RSSI value ?

CINR: 33

RSSI -48dBm

right now i can browse easily. btw can u guide me how these no. help us becoz in morning time net mostly don't work while i get blue signal on device.

speedtest result: http://img28.imageshack.us/i/wateentelecombandwidths.png/

today

CINR: 11

RSSI : -85dBm