A method performed by a slave unit for assisting in recovering a previously lost connection between said slave unit and a master unit of a frequency hopping communications system, the method comprising the steps of: causing the slave unit to enter a first recovery state, which includes: activating the slave unit for a first activation time period (T SCAN) out of every first standby time period (TSTANDBY); during each first activation time period causing the slave unit to monitor a selected channel for receipt of an ID packet from the master unit until said ID packet is received by the slave unit or until a maximum time period (T FASTRECOVERY) of the first recovery state has elapsed; and if the maximum time period of the first recovery state has elapsed, the method comprises the further steps of: causing the slave unit to enter a second recovery state, which includes: activating the slave unit for a second activation time period out of every second standby time period, wherein said second standby time period is different from said first standby time period; during each second activation time period causing the slave unit to monitor a selected channel for receipt of an ID packet from the master unit until said ID packet is received by the slave unit, and wherein an initial timing selection and/or frequency selection of the first activation time period is determined by utilizing clock information from a clock of the master unit from the last synchronization of the respective clocks of the master unit and the slave unit during the previous connection. causing the slave unit to enter a first recovery state, which includes: activating the slave unit for a first activation time period (T SCAN) out of every first standby time period (TSTANDBY); during each first activation time period causing the slave unit to monitor a selected channel for receipt of an ID packet from the master unit until said ID packet is received by the slave unit or until a maximum time period (T FASTRECOVERY) of the first recovery state has elapsed; and if the maximum time period of the first recovery state has elapsed, the method comprises the further steps of: causing the slave unit to enter a second recovery state, which includes: activating the slave unit for a second activation time period out of every second standby time period, wherein said second standby time period is different from said first standby time period; during each second activation time period causing the slave unit to monitor a selected channel for receipt of an ID packet from the master unit until said ID packet is received by the slave unit, and wherein an initial timing selection and/or frequency selection of the first activation time period is determined by utilizing clock information from a clock of the master unit from the last synchronization of the respective clocks of the master unit and the slave unit during the previous connection. activating the slave unit for a first activation time period (T SCAN) out of every first standby time period (TSTANDBY); during each first activation time period causing the slave unit to monitor a selected channel for receipt of an ID packet from the master unit until said ID packet is received by the slave unit or until a maximum time period (T FASTRECOVERY) of the first recovery state has elapsed; and if the maximum time period of the first recovery state has elapsed, the method comprises the further steps of: causing the slave unit to enter a second recovery state, which includes: activating the slave unit for a second activation time period out of every second standby time period, wherein said second standby time period is different from said first standby time period; during each second activation time period causing the slave unit to monitor a selected channel for receipt of an ID packet from the master unit until said ID packet is received by the slave unit, and wherein an initial timing selection and/or frequency selection of the first activation time period is determined by utilizing clock information from a clock of the master unit from the last synchronization of the respective clocks of the master unit and the slave unit during the previous connection. causing the slave unit to enter a second recovery state, which includes: activating the slave unit for a second activation time period out of every second standby time period, wherein said second standby time period is different from said first standby time period; during each second activation time period causing the slave unit to monitor a selected channel for receipt of an ID packet from the master unit until said ID packet is received by the slave unit, and wherein an initial timing selection and/or frequency selection of the first activation time period is determined by utilizing clock information from a clock of the master unit from the last synchronization of the respective clocks of the master unit and the slave unit during the previous connection. activating the slave unit for a second activation time period out of every second standby time period, wherein said second standby time period is different from said first standby time period; during each second activation time period causing the slave unit to monitor a selected channel for receipt of an ID packet from the master unit until said ID packet is received by the slave unit, and wherein an initial timing selection and/or frequency selection of the first activation time period is determined by utilizing clock information from a clock of the master unit from the last synchronization of the respective clocks of the master unit and the slave unit during the previous connection.