After starting strongly and pinging the cross bar, Rangers conceded another early goal son their travels leaving them chasing the game against title chasing Eastwood.
A second goal followed midway through the first half before Deeping again weren't able to take a good chance to reduce the arrears.
The hosts were getting joy down their right hand side and another cross from that area wasn't cleared before a curling shot in the bottom left hand corner saw them three nil up at the interval.
When the fourth goal came it was from a corner and strong header past Caleb Pipes into the top corner.
An incomplete defensive clearance saw a clear run on goal and finish to the end the scoring and as a result of scores elsewhere see Rangers dip back into the relegation places.