CARDIFF are still looking for their first win of the season after losing at home to Championship side Norwich.
Dennis Srbeny scored twice for the Canaries before Max Arrons put the visitors 3-0 ahead with 20 minutes left to play.
With the stadium starting to empty, Bruno Ecuele scored a consolation for Neil Warnock’s side.
It was Cardiff’s first goal in seven hours and now they will need to get back to the drawing board with a tough test against Arsenal this weekend.
Meanwhile Leo Bonatini finally ended his agonising eight-month goal drought by putting Wolves on the path into round three.
The bustling Brazilian hit-man had gone an incredible 28 games without scoring before notching his side’s opener in the 2-0 win at Sheffield Wednesday.
Sub Helder Costa made sure of victory by firing home an 84th minute penalty after he had been brought down in the box by Morgan Fox.
Aston Villa crashed out of the cup to ten-man Burton Albion thanks to Liam Boyce’s second half strike.
Steve Bruce’s side had a golden opportunity to equalise in the 89th minute from the spot when Kyle McFadzean was shown a straight red card.
But Albert Adomah missed from 12-yards sending Villa’s neighbours through.
most read in football
There were wins for Blackpool, Blackburn and Fulham who had no trouble overcoming Exeter with two goals from Aboubakar Kamara.
Frank Lampard continues to work his magic at Derby with an impressive 4-0 away win at Hull.
Middlesbrough beat Rochdale 2-1 and ten-man Oxford cruised past Newport.
QPR thrashed Bristol Rovers to relieve the pressure from Steve McClaren while Macclesfield and Wycombe both needed penalties to settle their ties.