Erzgebirge Aue provided the shock of the second round as they beat Bundesliga club Frankfurt 1-0 to advance to the next stage of the DFB-Pokal tournament.
Max Wegner scored the only goal of the game in the 74th minute for the third division side to stun the traveling fans.
A bit of luck and some resolute defending saw the unfavoured Veilchen hang on for an unlikely victory.
In the other shock of the early games, Mainz 05 fell to a 2-1 defeat to second division club 1860 Munchen.
The Bundesliga club took an early lead through a Christopher Schindler own goal in the sixth minute and looked to be cruising.
However, the second division side went up a gear in the latter part of the game and grabbed an through equaliser Stefan Mugosa in the 70th minute before Rubin Okotie grabbed the surprise winner seven minutes later.
Nuremberg showed their class to thrash Dusseldorf 5-1 with Guido Burgstaller (10'), Hanno Behrens (17'), Niclas Fullkrug (41'), Tim Leibold (43') and Danny Blum (69') all getting on the score sheet before Kerem Demirbay scored a 75th minute consolation goal for the visitors.
Elsewhere, Hertha Berlin needed extra time to dispatch of FSV Frankfurt. The second division outfit took the lead in the 47th minute through Timm Golley and Salomon Kalou equalised for Hertha nine minutes later.
The scores remained level after 90 minutes and the game went into extra time. Kalou completed his brace and secured the visitors a nervy passage into the third round with a 99th minute winner.