For the same reason mine is slow all the time probably, The fat that AT@T's DSL sucks and it is because their server has way too much traffic and they need to get a bigger server. That is the only way that this annoying issue will be fixed. My internet has been slow for at least a week now. They know what the problem is but they do not seem to care so all of us suffer. Dial up is faster then my DSL speed!