Which router is support for 10 or more laptops?

-we're 10 person live together in a big house,and alway having trouble with the netgear cvg 8240g .some one toll me should change the router coz it's unable to tranfering for 6 or more wireless laptops surf to net at the time. can you suggest me which modem router is good for us . We are using Optus cable broadband.

many thank