Your attenuation is very high. Either you are on a very long loop or there is a wiring problem. The download speed of 1.5Mbps would be appropriate for a long loop with such high attenuation. However the upload speed is ridiculously low (well below what is normal for such a loop length).
Confirming the likelihood of bad wiring is the message:
"Uncanceled Echo: 17.7 dB Suspicious - check phone filters and alarm"
This means that a lot of the transmitted DSL signal is being reflected back to the modem (and this means that transmit power is lost before it got anywhere near the CO).
I would strongly suggest to do some testing at the NID because those statistics point at bad inside wiring as the most likely cause. Chances are an external POTS splitter and a dedicated twisted pair cable to the modem will clear up the reflected signal (echo). -- Got some spare cpu cycles ? Join Team Helix or Team Starfire!
The engineer found the connection at AT&T MPOE is rotted and rusty. He cleaned up all of them (outside and inside) and now the speed is back t 7Mbps/1.xMbps. Hope the rainy days won't impact it again.
Sonic.net made a good job for their quick response and effective action!
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