My DSL connection (SBC in Northern CA) stops working between 1 AM and 7 AM. What could cause this?

Question

During the rest of the day, I get connection speeds upwards of 1.7Mbps. But starting at around 1 AM (sometimes earlier, sometimes later), the connection gets really, really slow. Eventually it stalls completely and remains out until around 7 AM.

I called SBC and they sent a tech guy over at around noon today. He ran some tests and concluded that the trouble is "inside your house" so it's not SBC's responsibility to fix. He said further work on his part would cost me $80/hour. I said "No thanks" and resolved to figure it out myself.

Can anyone think of a theory as to what might be causing this nightly downtime?

Answer 1

are you on a wireless router? is it secured, meaning you have it password protected? what is the speed during those hours?

the only thing i can think of is either it's line quality, or someone is stealing your bandwidth, or maybe several people are, but it's a very odd time to steal bandwidth, so I'm pretty clueless. Hope you get this solved....

Answer 2

I would predict it's not the ADSL line, but some kind of malicous code on your computer that is activating and stealing your bandwidth between these hours. When this trouble occurs go to a DOS command window and type NETSTAT and look at the tcp/ip connections, there shouldnt be more then the open internet applications you have running + 1 gateway. The only problem in the ADSL line would be a faulty repeater or a bad DSLAM in the Central Office Subcriber Loop Carrier, which either of these would show them selves at random hours.

Answer 3

is the services have problems