We have an earlier version of the RV Lock with the keypad separate. Sometimes it works first try, many times it doesn't. We've found that cupping the keypad with one hand, while punching numbers with the other, seems to "direct" the signal to the handle better. I assume this is not an issue with the new design. I wish I could trade my old one in on the new design. I love the convenience, when it works. We also have to hold the fob very close to get it to work.
Erika