UDP problem, with "big" reply's

[Richard \(MrBonus\)]

I have made a project using a UDP client in VB.NET but am experiencing
problems with receiving datagrams beyond a certain size (between 1300 and
1500 bytes).
I'm contacting a gaming server (Medal Of Honor Allied Assult), and the
command console are running udp, and it works fine until there are above 17
players on, then the reply about the users are to big.

But i can't seem to figure out why, but i've tested it, and it's always,
when the reply from the server are getting to big, can anyone help me out?

Richard