guys..im having a prob here... my dls are very slow and it say that my DHT network is disabled in user settings but i have check that i have enabled DHT... im using bitcomet

hey guys.. im kinda having the same problem as some of you here.
my BT speeds are fine and good which is about 100kbps. so when im downloading, i understand that my bandwidth is fully taken up, so i cant really use the browser. but after downloading for 45mins to 1 hour, suddenly i'll get totally disconnected from the internet... even when i close my BT at this stage, i cant access internet at all. and im on a wifi router. so everytime this happens, i have to restart the router.. then it'll b fine, but 45-60mins, problem continues.
any1 have any solution for my problem?

im using the aztech dsl600eu attached to a wifi router. the wifi router has np.. probably the modem.
anyway to counter this problem besides buying new modem?