Brian Barry-Murphy's bright start as Cardiff City manager continued after the Bluebirds beat Swindon 2-1 in the Carabao Cup.
First-half goals from Cian Ashford and Rubin Colwill were enough for Cardiff to progress despite a second-half strike from Princewill Ehibhatiomhan.
And it continued City’s unbeaten start to the season after picking up four points in two League One fixtures under the Irish man’s watch.
"Really pleased, it means a lot to me to get through to the next round and to see who we could possibly take on," he said after the win.
"This competition creates so many brilliant occasions but to get to those occasions you have to go through the rounds.
"So to win tonight was very important for us and we treated the game really seriously and I thought there was respect in that performance so I’m happy."
Republic of Ireland international Jason Knight was on the scoresheet for Bristol City as they overcame MK Dons 2-0, Yu Hirakawa getting the other goal.
Ollie Palmer scored a stoppage-time brace before Wrexham completed a remarkable comeback by edging out Hull on penalties.
Elliot Lee opened the scoring for Wrexham but they seemed sunk following goals from Oli McBurnie, Joel Ndala and Matt Crooks, only for Palmer to score twice at the end and send the contest to a shoot-out.
After a gripping 3-3 draw, Ndala rattling the crossbar with his spot-kick proved crucial as Wrexham prevailed 5-3 in the shoot-out, sealed with Jack Marriott finding the net with his effort.
Bromley provided the biggest giant-killing of the night as the Sky Bet League Two side overcame Championship Ipswich 5-4 on penalties following a 1-1 draw over 90 minutes.
Deji Elerewe gave Bromley the lead and although Ben Johnson equalised for Ipswich, who were relegated from the Premier League last season, a nervy shoot-out went in favour of the minnows.
Sam Long was the hero as he saved two Ipswich penalties – leaving Marcus Ifill to convert the winning spot-kick and give Bromley their first ever win in this competition.
Ben Close, Damola Ajayi, Robbie Gotts and Tom Nixon were all on the scoresheet as League One newcomers Doncaster pulled off another upset with a comprehensive 4-0 victory at Middlesbrough.
Blackburn and Portsmouth were also knocked out by League One opposition, with both teams beaten at home 2-1 by Bradford and Reading respectively, while Owen Oseni’s brace helped Plymouth come from two goals down to oust QPR 3-2.
Mateus Fernandes’ goal helped Southampton edge out Northampton 1-0, Coventry beat Luton by the same scoreline courtesy of Ellis Simms and Derby defeated West Brom 3-2 on penalties after a 1-1 draw.
Josh Sargent and Marcelino Nunez were on target as Norwich won 2-1 at Watford, Stoke got the better of Walsall 4-3 on penalties after a goalless draw and Millwall claimed a 1-0 victory at Newport. Miles Leaburn, Ibrahim Fullah and Luke Berry scored in Charlton’s comfortable 3-1 victory over Stevenage.
Charlie Raglan’s own goal gave Preston a 1-0 triumph at Barrow, Tyler Goodrham’s strike was the difference in Oxford beating Colchester by the same score and Swansea beat 10-man Crawley 3-1.
Wigan, Stockport, Rotherham, Wycombe, Lincoln, Grimsby, AFC Wimbledon, Mansfield, Cambridge, Port Vale and Accrington also booked their spots in the second round.
