Hi
With so little info its impossible to say .Is this anew problem ? However your synch speed is a little low ,I suspect because your target SNR has been raised to 9db maybe more
what is your uptime ? were these stats taken immediately after synch was established ?
quote
ADSL Link Downstream Upstream
Connection Speed 15603 kbps 931 kbps
Line Attenuation 26.5 db 15.5 db
Noise Margin 10.3 db 8.0 db
for your attenuation you would expect to synch at about 17000Kbps with the default target SNR of 6db.
If you continue having these disconnections then your Target SNR could be increased further with the associated loss of synch .
Using Routerstas would enable continuous monitoring of your stats ,could help in tracing the reason for your disconnections . see link below
http://vwlowen.co.uk/internet/files.htm
Regards Jeff