Hastings United will be the lowest-placed club in the hat for the FA Cup third round draw after their 1-1 draw at Harrogate Town.

The Sussex side, struggling in the lower reaches of the Ryman Premier Division, secured a second-round replay against their Conference North opponents thanks to Jamie Crellin's goal in the second half.

Harrogate had taken the lead five minutes before half-time when Tom Platt headed in Shane Killock's cross. Hastings spurned a glorious chance to win it late on but Zac Attwood shot straight at Craig MacGillivray when clean through.

Probably the biggest surprise came at Gresty Road, where Burton of League Two won 1-0 away to League One Crewe. Calvin Zola's fifth‑minute header gave the visitors the lead and a determined defensive display secured Gary Rowett's side a place in the third round.

A bigger upset looked in prospect at Bramall Lane, where League One front-runners Sheffield United trailed to Port Vale, a division below, until the last minute before Shaun Miller struck twice in injury time. Tom Pope had put Vale ahead in the 33rd minute.

The Blue Square Premier side Luton are the first non-league side guaranteed a place in the third round after goals from Andre Gray and Alex Lawless gave them a 2-1 victory over the Conference South Dorchester at Kenilworth Road. There was to be no further upset for non-League Chelmsford, conquerors of Essex rivals Colchester in the first round, as they crashed out 3-0 at Crawley. The Blue Square South side's hopes were in effect ended when they had Donovan Simmonds sent off in the 35th minute. Liam Cooper gave League Two Chesterfield a surprise lead against the League One leaders Tranmere at Prenton Park but goals from Cole Stockton and Adam McGurk secured a 2-1 win for Rovers.

The League Two leaders Gillingham were not so fortunate, falling 2-0 at League One Preston whose goals came in the first half from Jeffrey Monakana and Stuart Beavon.

Oxford claimed a second chance against Accrington Stanley after a dramatic 3-3 draw in which four goals were scored in the last 10 minutes. Lee Molyneux seemed to have won it for Accrington in injury time but there was still time for Michael Raynes to equalise.