today my router resync and glad it went back to 19Mbps but still my attenuation is still too high.
Bandwidth (Up/Down) [kbps/kbps]:
2,858 / 19,561

Data Transferred (Sent/Received) [B/B]:
0 / 0

Output Power (Up/Down) [dBm]:
6.9 / 12.7

Line Attenuation (Up/Down) [dB]:
56.9 / 23.1

SN Margin (Up/Down) [dB]:
11.9 / 12.8
Spoke to faults team and they said that attenuation is linked with the DLM adjustment.. they did mentioned to call them after 7 days and they will dispatch tech if attenuation is still too high.
one thing that I still having prob is PS3 netflix still buffering and wont play movies due to internet is too slow.. but ATV2 works fine and can watch HD.
I believe the prob is Telecom speed to SONY PSN network is not good hence buffering..