socket. OnOpen ()==& gt; 
{
Console. WriteLine (socket. ConnectionInfo. ClientIpAddress + ": WebSocket is open!" ); 
Console. WriteLine (socket. ConnectionInfo. Cookies, Count); 
AllSockets. Add (socket); 

}; 

Why get Cookies number 0 always?

This is the front place Cookies code

 $(document). Ready (function () {
$. Cookies (' userID ', '0000');