Netgear 5Mbps speed cap removal firmware?

[yagga]

I have a Netgear WGU624 router w/ 4 port ethernet, 108 speed A/G wireless and I have recently tested the speed of it online and it apparently limits my connection to only 5 Mbps, and I get 6 and sometimes 12 without it. Now, does anyone know if there is an official Netgear firmware update that corrects this, or a setting in it I can change, or is there an "unofficial" firmware that works to correct this significant problem?

[Thrax]

What speed is your ISP?

[yagga]

What speed is your ISP?
6, BUT! before you say something like don't expect the entire speed, I've tested the speed without the router and I get slightly higher than 6, and sometimes 12 (when lines are supposedly 70% idle). I KNOW the router is limiting me somehow.

Edit/ Well, I've updated the firmware to the latest v. 2 from the first v. 1 and the speed has increased from the 5 cap to about 5.7 now, better, but not quite as good as 6.2 which I consistantly was getting with the direct connection.