Less than a year ago I was upgraded tothe 3 Mbps DSL plan, and I consistently reached speeds of 2.6-2.9 Mbps. Lately, I can't seem to get higher than 1.3 Mbps on any device I try testing with (desktop, laptop, smartphone). Nothing has changed on my end, so is it safe to assume this is simply the result of throttling, and there's nothing I can do?