i have a two way gang switch in the hall when i switch it on sometimes i need to go up stairs to switch it off not sure how the wiring goes so that i can witch off from the bottom all the time instead of running up stairs
How often is "sometimes"?
Once a month? Once a week? Or every time the light was switched on upstairs?
What wires do you have at each switch and did it work properly at some point in the past?