I'm paying for 75 mbps download and upload from Verizon and wirelessly I can only reach 25 Mbps but when plugged in with Ethernet it reaches 75. I read that g and b bottleneck n but I was thinking about buying a dual band router to run with my current FiOS router so that all b and g devices can either connect to the FiOS router and all the n devices can connect to the dual band router. Would this setup work for what I'm trying to achieve? Thanks.