Hey guys !
i've been experiencing a weird problem from a few weeks . When i try to play a video in km player it gets stuck while playing after some time and then plays normally again and the problem repeats again . first i thought it may be a problem with the codecs , so i installed new codecs but nothing changed . Later i formatted the entire computer but even after this the video's getting stuck . But a few days ago I noticed whenever my system is connected to the internet the video gets stuck and when i disconnect my system from the net the video again plays smoothly . Please tell me how to get over the problem . Thanks in advance .

My cofig : intel dual core @ 1.6 GHz , 200 gb hdd , 2gb ram , 512 mb nvidia ge force 8400 GS .