I have two computers connected to a Linksys dual band Wireless-N router and the firmware is up to date. Both computer are dual band Wireless-N as well. I also have full signal strength for both computers and the routers encryption is set to WPA2/WPA however I am getting incredibly slow speeds for transferring files. I'm trying to transfer a 10GB file from one to the other. It first started out at over 2MB/s but then over the span of a few minutes plummeted to the 400KB/s range. After sitting around there for 10 minutes it has began to slowly go back up but has been holding at just over the 600KB/s range for quite some time.