Hockenheim has been slated as a possible alternative for the 2013 race.
Jan.27 (GMM) Bernie Ecclestone has called off negotiations with the Nurburgring, according to Germany's Der Spiegel.
But Der Spiegel on Sunday quoted Ecclestone as saying: "Following a detailed examination of the (Nurburgring's) proposal, we do not accept it as financially feasible and therefore end the negotiations."
Hockenheim, the host of last year's German Grand Prix that was not scheduled to return to F1 until 2014, has been slated as a possible alternative for the 2013 race.
Der Spiegel and the German news agency DPA on Sunday said there was no official comment from Nurburgring officials.