In the context of an execution of a pairing phase for pairing at least one communication device with a wireless access point creating a plurality of cells in distinct respective spectral bands, the wireless access point: obtains a sequencing of the cells created by the access point according to a criterion of occupation of the spectral bands; and activates a systematic authorisation of pairing via each cell during a first predefined duration, of any communication device that so requests, starting from the cell in the least occupied spectral band up to the cell in the most occupied spectral band according to the sequencing obtained, applying a shift in time of a second predefined duration that is at least equal to a period of time statistically necessary for the communication device to effect the pairing with the wireless access point and which is strictly less than said first predefined period.