A method for setting up a connection (MH-LNS) of a mobile terminal (MH) to a network server (LNS) via a mobile network (GSM, RAS / LAC) and a further network (Internet), wherein a connection part with a disconnection of a connection from the mobile terminal (MH) to the network server (LNS) (between PEP and LNS) between the connection server (PEP) and the network server (LNS) is maintained, which connection part (PEP / LNS) of the compound (MH-LNS) between the mobile terminal (MH) and the network server (LNS), wherein at a later establishing a new connection between the mobile terminal (MH) and the network server (LNS), the maintained part connection (PEP-LNS) is part of the new compound of the broken connection, wherein the connection server (Performance Enhancing Proxy) when closing a connection (MH-LNS) the transmission of the degradation in question (in RAS) information (CDN) prevented to the network server (LNS) to retain the connection part between itself (LNS) and the connection server (PEP = performance Enhancing proxy) to cause.