Hub3 should be capable for average usage and new Hubs are in short supply ATM.
How many devices are you connecting to it on wifi and on ethernet cables?
What actual problems are you experiencing on them?
--------------------
John
--------------------
I do not work for VM. My services: HD TV on VIP (+ Sky Sports & Movies & BT sport), x3 V6 boxes (1 wired, 1 WiFi, 1 on PA) Hub5 in modem mode with Apple Airport Extreme Router +2 Airport Express's. On 250Mbps, Talk Anytime Phone, x2 Mobile SIM only iPhones.