Method, for a wireless communication network using a plurality of frequency bands and comprising at least one so-called client electronic device (210, 600), each client electronic device comprising at least two radio modules (211, 213, 604...60N), each radio module being adapted to use a frequency band in the plurality of frequency bands, and a so-called master electronic device (200, 400, 500), the master electronic device comprising at least two radio modules (210, 202, 203, 204, 505...50N), each radio module being adapted to use a frequency band in the plurality of frequency bands, the method allowing the establishment of a plurality of simultaneous connections between a client electronic device and the master electronic device, the method being executed by the master electronic device and comprising the steps of: - receiving, via a first radio module of the master electronic device and coming from a first radio module of a client electronic device, a message comprising a request to establish a first connection between the master electronic device and the client electronic device, the message comprising an identifier associated with the client electronic device and a first item of authentication information associated with the request to establish a connection, - determining whether a second connection is already established between a second radio module of the master electronic device distinct from said first radio module of the master electronic device and a second radio module of the client electronic device corresponding to the identifier received, said second radio module of the client electronic device being distinct from said first radio module of the client electronic device, and, if such is the case, then: - sending, via the second radio module of the master electronic device and intended for the second radio module of the client electronic device, a message comprising a request to verify the request to establish the first connection received, the message comprising the first item of authentication information received, - receiving, via the second radio module of the master electronic device and coming from the second radio module of the client electronic device, a message comprising information validating the request to establish the first connection, and - establishing the first connection between the first radio module of the client electronic device and the first radio module of the master electronic device. - receiving, via a first radio module of the master electronic device and coming from a first radio module of a client electronic device, a message comprising a request to establish a first connection between the master electronic device and the client electronic device, the message comprising an identifier associated with the client electronic device and a first item of authentication information associated with the request to establish a connection, - determining whether a second connection is already established between a second radio module of the master electronic device distinct from said first radio module of the master electronic device and a second radio module of the client electronic device corresponding to the identifier received, said second radio module of the client electronic device being distinct from said first radio module of the client electronic device, and, if such is the case, then: - sending, via the second radio module of the master electronic device and intended for the second radio module of the client electronic device, a message comprising a request to verify the request to establish the first connection received, the message comprising the first item of authentication information received, - receiving, via the second radio module of the master electronic device and coming from the second radio module of the client electronic device, a message comprising information validating the request to establish the first connection, and - establishing the first connection between the first radio module of the client electronic device and the first radio module of the master electronic device.