obtaining the current network rate 1101 the system will then locate what is the user 39 s preconfigured network value 1103 the next step the system will check to see if the user 39 s preconfigured network value is greater than the current network rate 1105 if the answer given is u201c yes u201d the system will reduce the network rate to the user preconfigured network value 1107 once the network rate is reduced to the user 39 s preconfigured network value the operation then terminates if the answer given is u201c no u201d the operation will then terminate fig1 is a simplified flow diagram for the security encryption management of 1200 this diagram is merely an example which should not unduly limit the scope of the claims herein one of the ordinary skills in the art would recognize many variations alternatives and modifications as shown the security encryption management flow starts 1201 by changing the shielded powerline network module to network encryption key nek a 1203 then the system checks to whether the shielded powerline network module nek a matches the nek to the coax zigbee modem or not 1205 if it does not match the system loops back to change the shielded powerline network module to nek a 1203 if it does match the system changes the nek of the coax zigbee modem to nek b 1207 the system then changes the shielded powerline network module to nek b 1209.