Dont know what your doing wrong - I've got a solid connection ( so far) uptime 32 days, 1 hour, 15 minutes ( and that was a temporary power down of the router to move something) prior to that no downtime either
rock solid connection since switching to Now
Unfortunately it would appear that reps from Now do not pay any attention to this site so spamming it out hoping that someone form Sky/Now may take notice will be as much use as a wet fart in a hurricane.
Drop outs, is this wifi or ehternet? is the router re booting? if so what router are you using?
what is the connection uptime on the router?
are the lights on?
is DSL present on the line during the drops?
is it Christmas yet?