I have had NBN installed for 2 days.  I originally ordered the 50Mbps plan and had that install and had a modem provided by TPG at the time of installation.  Only yesterday changed my plan to a 100Mbps plan.  Will the modem that I received from TPG when I signed up to the 50Mbps plan, work ok with a 100Mbps plan, or do I now need to upgrade my modem.     David Barnes ... View more