DSL dropping connection every minute!!
 

my dsl drops connection every minute, i have spoken to my isp (o2) and they sent an engineer round twice and they did a series of test and changes but still no result. i have had no problems with my isp until 4 weeks ago when the disconnections starting happening...here the strange part though, after midnight around 12:30am-1:30am it comes on stable until 12:00pm and then after that it starts happening again? any suggestions? thanx