your fault for not having good equipment
Like what equipment are you referring to? In game? In game I use +1 longbows (should be 150ft range), and my sneak attack range is still short with a Drow with superior darkvision out to 120feet (36.5 meters)... The game is limiting it to 18 meters (59 feet), though if you are not playing a rogue you likely wont notice the range limitation near as much as you wont be limited to 18m down hill, UNLESS you are trying to SNEAK Attack. That's where the shorter range shows up and rears it's ugly head with "You don't have advantage".