Problem with winsock in udp mode in vb6

Hi,

I have written an UDP client using winsock control in vb6.
When i load from server quantity of bytes till 10k the operation is succesful.
When the file size in bytes is more than 10k the win socket stops getting data. I think that the winsock buffer is full and need to be cleared.Am i right? and if it so how can i clear it? if it isn't the reason what it can be? I am really struggling to findout what makes this behaviour.

can anyone please help me...

Thanking you in advance.

Best regards

Ofer