A method for commissioning at least one infrastructure element of a lighting network, wherein an integrated communication network of the lighting network is not yet available, using a commissioning device, wherein the commissioning device comprises a first communication means for communicating with a server unit and a second communication means for communicating with the at least one infrastructure element, the at least one infrastructure element comprises a memory means storing pre-stored key information stored during a manufacturing process of the infrastructure device and the pre-stored key information being unique to the at least one infrastructure element and further a third communication means, the server unit comprises a storage means storing the key information, which is pre-stored in the infrastructure element associated with an identification information of the at least one infrastructure element, and the method comprises obtaining, by the commissioning device, the identification information from the at least one infrastructure element using an inherently insecure communication channel between the second communication means and the third communication means, transmitting, by the commissioning device, the obtained identification information to the server unit, retrieving, by the server unit, the stored key information associated with the transmitted identification information from the storage means, transmitting, by the server unit, the retrieved key information to the commissioning device, and establishing, by the commissioning device, a secure communication channel to the at least one infrastructure element using the retrieved key information transmitted by the server unit to the commissioning device, wherein the commissioning device logs-in to the server unit using user account information for transmitting the identification information and receiving the key information, and the commissioning device commissioning the at least one infrastructure element to the lighting network using the received retrieved key information, by associating a physical position of the at least one infrastructure element with a logical network address in the lighting network, configuring operating parameters of the infrastructure element and providing key information for a secure communication between infrastructure elements of the lighting network. the commissioning device comprises a first communication means for communicating with a server unit and a second communication means for communicating with the at least one infrastructure element, the at least one infrastructure element comprises a memory means storing pre-stored key information stored during a manufacturing process of the infrastructure device and the pre-stored key information being unique to the at least one infrastructure element and further a third communication means, the server unit comprises a storage means storing the key information, which is pre-stored in the infrastructure element associated with an identification information of the at least one infrastructure element, and the method comprises obtaining, by the commissioning device, the identification information from the at least one infrastructure element using an inherently insecure communication channel between the second communication means and the third communication means, transmitting, by the commissioning device, the obtained identification information to the server unit, retrieving, by the server unit, the stored key information associated with the transmitted identification information from the storage means, transmitting, by the server unit, the retrieved key information to the commissioning device, and establishing, by the commissioning device, a secure communication channel to the at least one infrastructure element using the retrieved key information transmitted by the server unit to the commissioning device, wherein the commissioning device logs-in to the server unit using user account information for transmitting the identification information and receiving the key information, and the commissioning device commissioning the at least one infrastructure element to the lighting network using the received retrieved key information, by associating a physical position of the at least one infrastructure element with a logical network address in the lighting network, configuring operating parameters of the infrastructure element and providing key information for a secure communication between infrastructure elements of the lighting network.