North Leigh United were given a fright at Uhlsport Hellenic League Division 1 West strugglers Letcombe before hitting back for a 4-1 win in the Bluefin Sports Cup third round.
Tom Broad put the visitors ahead on seven minutes.
However, the Millers recovered in style, thanks to goals from George Seacole, Joe Fullerton, Connor Robins and Nathan Blackwell.
Carterton lost 2-1 away to promotion-chasing Purton in Division 1 West.
Two second-half goals from Marcus Hall and David Gee saw Purton retain third spot.
Carterton had led awith a goal from Sean McKeon.
Comments: Our rules
We want our comments to be a lively and valuable part of our community - a place where readers can debate and engage with the most important local issues. The ability to comment on our stories is a privilege, not a right, however, and that privilege may be withdrawn if it is abused or misused.
Please report any comments that break our rules.
Read the rules here