Inspiron 6400 Network Connection Problems

I had problems with staying connected to my router when I had bio A09. I just downgraded to A07 and it works like a charm.
The problem was that when connections exceeded around 100, the computer would disconnect from the internet. Rebooting the router would fix the problem, but once it reached 100 again, it would disconnect again. The disconnects are more frequent when using technologies such as Bittorrent.

My specs now:
Inspiron 6400
Bios A07
Windows XP Home
Intel 3945abg Wireless

Hope this helps people.