I have AT&T broadband and an 857 router/DSL modem.
Periodically, sometimes quite frequently, my 857 is dropping my ADSL connection. It appears to be losing PPPoE, but I'm not really sure how to tell for sure. I'm a bit of a newbie when it comes to Cisco stuff.
I had the AT&T guy come out, and he tested my line. All the numbers were great. In fact, he says my line specs out as good or better than any he's EVER seen, and the local hookup is only a couple of short blocks away, which is why it's so good.
So, it seems nothing is wrong from the phone company end. I thought it might be a bad filter, so I disconnected every phone in my house, but it still drops connections.
Does anybody have any idea either what might be wrong or what kinds of diagnosis I can do.