uncheck file and printer sharing...not needed s.o.b....i've had mine unchecked for three years,,,,maybe i will help...then you can do the command prompt...ipconfigflushdns,,,,hopefully that will help...but doing a tracert has showed the first hop was slow,,,,so that tells me something is going on outside,,,,keep hounding them S.O.B,,,,eventually they will get sick of you and send out a tech or change your isp....i wish i could help better my good man...but i myself have to sit there for hours figuring out what is going on...usually a call to the isp is useless as they won't tell you if there is packet loss on their end....pricks...i had the same prob about six months ago..since then i upgraded my speed and all is good...i think that they do that on purpose sometimes for people to upgrade,,,,big buisness rules the planet...we all know that...the pricks never care about individuals ,,just the masses for the money