I have two Linksys RV042 Firmware Version: 220.127.116.11-tm routers, both brand new for Newegg. Have on at my office and one at a clients office. Both using Comcast High Speed 12mb/s.
Using the router hooked directly to the comcast SMC modem/router internet is speedy and great.
Hooked up to the Linksys router and everything is slow. Most pages time out and you have to reload them three or four times for them to come up. Download speeds for torrents, files, online speed tests are all normal and great. Just loading webpages is slow. And it is on every computer on the LAN, and every computer on the wireless network through an engenius access point.
Put the Linksys as the host of DMZ mode on the comcast modem/router, updated the firmware on the Linksys, disabled its firewall, set MTU to 1500 and same result. And it acts the same on both networks.