i have a RB30011UIAS that will not update to v6.42.6 what can i do its on v6.42.1

thanks for quick reply

I purchase a 100 mb download 5mb upload service and I'm not getting the full bandwidth out of the router. I checked the bandwidth directly connecting laptop to modem and I'm getting what I purchase every time I go through the router it drops drastically I'm only getting 20 download and 5 upload. Can...