and i have good knowledge / understanding of computers currently working on getting my a+
but today my friend lost internet on their main computer
they plug straight into the modem have done some testing
and isolated the computer as the problem as when pluging in the laptop into the modem
it has internet connectivity have ran malwarebytes on the system in question and it didnt find anything then decided to try a system restore which worked
the computer had internet again but for all of 10mins which makes me wonder if they have a dos virus / attack going on
have done ip flushes and renews also to no avail
any ideas of what else it could be or how to get rid of it , know the easy route is a format but they have alota data they dont want to lose
oh and when i say internet i dont mean just webpages but msn, ventrilo and WoW also have no connectivity and the connection says limited or no connectivity