Hannover chairman Martin Kind is not prepared to let manager Mirko Slomka leave the club before the end of the season.
It appears that Hannover's boss wants to quit the awd-Arena after turning down a new contract in December.
Slomka, whose current deal expires in the summer, has earned many plaudits this season after guiding his club to second place in the Bundesliga having only taken charge in January 2010.
Reports have suggested that north German rivals Wolfsburg could be considering replacing the underperforming Steve McClaren, but Hannover would not be prepared to stand aside.
Kind told Neue Presse newspaper: "Mirko Slomka is manager of Hannover and he is under contract.
"Hannover are used to fulfilling contracts in the good times as well as the bad. But we are still hopeful of extending Mirko Slomka's contract with our club."
Meanwhile, Hannover general manager Jorg Schmadtke has confirmed that he has been paying attention to Nancy midfielder Landry N'Guemo.
The former Celtic loanee has been linked with a move to Germany amid fears that injury could force ex-Fulham midfielder Leon Andreasen into retirement.
Schmadtke told BILD: "I am aware of the player Landry N'Guemo. He is a central midfielder able to fill various roles in the middle of the park."