maraming factor kung bakit bakit nangyayari yan sa connection mo pwedeng sa Hardware mo o sa network ang problem ganito gawin mo pwedeng na virus ka:
do the FF:
**check mo muna kung ikaw lng hindi nkkaconnect; transfer u muna connection
(if true) update ur anti virus or download a free anti...
nakakainternet ka ba? kung nkkainternet ka wla na yan sa isp mo problema ng OS mo yan try mo to:
go to run type devmgmt.msc click ok..
click network adapters..
right click then update drivers
or use System Restore..
try mo muna
baka nasunog na board nyan. compatible ba ung charger sa laptop mo? para malaman mo ganito lng yan check mo to sa LAPTOP mo: INPUT (100-240V) - (1.2 A 50-60GHz) OUTPUT (19 V----2.15A kung may ganyan sa laptop mo dapat ganyan din ang nkalagay sa bgo mong charger dapat sakto ung specs kung hindi...
sounds like it has to do with your network provider or u might accounted for their promos call them for deactivation. also check if your data packets are enable