According to the AT&T DSL techs that come to my house, my DSL service is almost 4 miles away from the hub. BUT, both my neighbor and I were getting ok service out there for over 10 years (1.0 Gbps - 1.5 Gbps). Once in a while we would have to reboot our routers. Now, we are lucky if we can get decent speed (over 500 KBPS for more than 2 hours). And download speeds always fall behind upload speeds.
DSL speeds have been terrible since January 14th and AT&T can't find the source of "noise" on the line. Terrible means less than 349 Kbps, typically 100 - 200 Kbps. I believe the issue is systemic as does my neighbor who is experiencing the same issues in the same time span. The source of the noise comes from various points on the line. They cannot pinpoint the source, as it seems to change. AT&T has been out to my home weekly since Jan 14th, so much so that I know most of the techs personally now.
Fact: DTE started installing "smart" meters this year in our area.
I am thinking that the smart meters may be the cause of intermittent "noise" on the line. I recall when managing a manufacturing network, that heavy machines would generate electro magnetic "noise" and disrupt the network with errors. So this is entirely plausible. I have notified AT&T and am pushing them to investigate.
Does anybody have any insight into this issue?