Ryan Brooks fired a double as Abingdon United staged a superb second-half display to reach the second qualifying round with a 4-2 win against Bracknell Town.
But they did it the hard way, after twice throwing away the lead.
It was Bracknell who started the stronger withAbingdon goalkeeper Simon Tricker blocking a shot from Mark Anderson with his legs on 17 minutes.
Bracknell's Jamie McClurg then hit a shot straight at Tricker, before Anderson shot wide after Hutchings had jinked past the home defence.
Five minutes before the break, Tricker held onto a shot from Edwards as Bracknell ran the show.
It wasn't until 42 minutes that Abingdon created their only chance of the first half Anaclet Odhiambo's shot was kept out by keeper Walker, only for Julian McCalmon to shoot over.
Six minutes after the break, the game exploded into life when Ryan Brooks fired Abingdon ahead with an unstoppable shot, only for Bracknell to level just seconds later through Anderson.
Within three minutes, Marks Simms had restored Abingdon's lead, stabbing home after the Bracknell keeper Walker spilled the ball.
Then Walker kept out Odhiambo's piledriver with a tremendous one-handed save.
Simms twice went close, first with a 40-yarder that dipped just over the bar, before heading over.
But Bracknell weren't finished, levelling with 20 minutes left after keeper Simon Tricker's clearance fell to Ben Woozley.
Brooks then drove in his second from long-range to give Abingdon the lead for the third time. This time there was no Bracknell revival.
Odhiambo was again denied by Walker who tipped the ball out for a corner.
However, he could do little, when from the resulting corner, Odhiambo was brought down.
Ryan Curtin sent Walker the wrong way from the penalty spot.
Walker then somehow kept out Odhiambo's header at full stretch.
Brooks was unlucky not to complete his hat-trick. He beat the off-side trap, only to have the ball whipped off his toes as he shaped to shoot.
Late on, Walker again performed heroics to keep out Odhiambo and Simms, as Abingdon finished strongly.
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