Striker Ricky Miller started as Dover beat Chester 2-0 at the Crabble Ground, with former Hatter Connor Essam on target, although Solomon Taiwo was out injured.
Winger Dave Martin had 90 minutes for Bristol Rovers in their 2-2 draw at Aldershot.
In the FA Cup third qualifying round, striker Zane Banton came close for Biggleswade Town, while Ian Rees came on as a late sub, but the Waders lost 2-0 at home to Maidstone United.
Lee Angol was also involved as Boreham Wood were held to a 2-2 draw by Frome Town and face a replay tomorrow night.
HATTERS RATED: Luton Town 0 Preston North End 1
Ex-Spurs youngster reflects on 'bittersweet' Championship debut for Luton against Preston
Jones left frustrated once more as Town fail to take their chances during Lilywhites defeat
Campbell knows Luton have to be more clinical in both boxes after tough start to the season
'Embarrassed' Hatter boss hits out at one of the 'worst' individual performances he has ever seen after Town's cup exit to Exiles
Defender Danny Fitzsimons had another full game for Bishop’s Stortford as they won 1-0 at Farnborough in Conference South.
In Conference North, Kynan Isaac played for Oxford City as they went down 4-1 at home to Solihull Moors.
Full back Mark Onyemah continues his fine goalscoring form by netting for Thurrock in their 5-1 win over Burnham Ramblers in Ryman Division One North.