We'd been dealing with an unstable line for months, gradually getting worse. Then, (in October?), AT&T disconnected our line by accident, and it took them 9 days or so to get it working again. We had them back out right after that to work on the stability issues, and the first thing they said, before even touching our line, was they wanted to cut our speeds in half because we were too long a loop to give us the same speed we had been getting stable till now. After arguing with them, they finally checked the line, found a problem, and it was fixed. It didn't solve it completely but it made it much more stable. Fast forward to now, and it has gradually been getting more unstable again. After it dropped for several hours, I called in and AT&T dispatched people a few days later. They replaced the line to the house, replaced the modem, and eventually found a problem up town which they had to get a tech with a bucket truck to fix. That evening(I assume when the other tech finally got there), after a day of up/down/up/down, my service dropped hard for 10 minutes, then came up quite stable. The next day, completely stable. The next morning it was unstable again(it rained earlier that morning, I can't help but wonder if this affected things). Connection was up and down, going through the training/activating cycle, and at times saying no broadband signal detected. So AT&T was dispatched again. They were supposed to be here between 2 and 5 Saturday. We never saw them. They did seem to cap our line at half the speed though, as it re-synced to 3596 and will no longer sync higher. This happened right at 2pm, suggesting once again they did zero work on the line before determining halving the speed was a "solution". Keep in mind that to this point, every time they've actually looked for a problem they've found one, so it isn't that we're just "too far": these lines need actual repair and seem to function better each time they do, but now we're on an intentionally crippled line.
Did it solve the problem? No, it soon went wonky, disconnected, then left me connected at a mere 1.7mbps till I reset the connection. But now, even when the line is behaving itself, I'm left with not near enough bandwidth for a house with more than one user.
I regret the trouble my line is causing to Sonic, I know my repeated calls can't be profitable for you. And I desperately wish there were an alternative to AT&T here: but there's not. I suppose I'll have to call Sonic once again as there's no way I want to put up with a still unreliable line but now at half the speed.