#define MAX_PING            1000   // Max Ping
#define MAX_PL              1.0    // Max Packet Loss
forward CheckStats();//for the timer
new Timer;//the define for the timer
#define COLOR_RED 0xFF0000AA //the color we are going to use on this tutorial

Timer = SetTimer("CheckStats", 1000, true);//will start the timer when the server starts

public CheckStats()
{
         for (new i = 0; i != MAX_PLAYERS; ++ i)
    {
        if (IsPlayerConnected(i))
        {
    if(GetPlayerPing(i) > MAX_PING)//get the player ping more than the maximum ping allowed in server
    {
    new string[257];
    format(string,sizeof(string),"{FF0000}Player{FFFFFF}[%s] has been kicked for exceeding ping limit [%d/%d]",GetName(i),GetPlayerPing(i),MAX_PING);//the format for a message to all players
    SendClientMessageToAll(COLOR_RED,string);//and the message
    Kick(i);//will kick him
    }
    if(GetPlayerPacketLoss(i) > MAX_PL)//get the player pl more than the maximum pl allowed in server
    {
    new string[257];
    format(string,sizeof(string),"{FF0000}Player{FFFFFF}[%s] has been kicked for exceeding packetloss limit [%d/%d]",GetName(i),GetPlayerPacketLoss(i),MAX_PL);//the format for a message to all players
    SendClientMessageToAll(COLOR_RED,string);//the message
    Kick(i);//will kick him
    }
}
    return 1;
}

forward Float:GetPlayerPacketLoss(playerid);//forward for the packetloss
stock Float:GetPlayerPacketLoss(playerid)//the stock
{
        new stats[401], stringstats[70];//those are the variables we will need in the stock
        GetPlayerNetworkStats(playerid, stats, sizeof(stats));//this one will get the net stats
        new len = strfind(stats, "Packetloss: ");//and this one will get the packetloss
        new Float:packetloss = 0.0;//the float for the packetloss
        if(len != -1)
        {
                strmid(stringstats, stats, len, strlen(stats));
                new len2 = strfind(stringstats, "%");
                if(len != -1)
                {
                        strdel(stats, 0, strlen(stats));
                        strmid(stats, stringstats, len2-3, len2);
                        packetloss = floatstr(stats);
                }
        }
        return packetloss;
}

Timer = SetTimerEx("CheckStats",1000,1,"i");//will start the timer when the server starts

public OnGameModeInit()
{
    SetTimer("CheckStats", 1000, true);
    return 1;
}

forward CheckStats();
public CheckStats()
{
    for (new i = 0; i != MAX_PLAYERS; ++ i)
    {
        if (IsPlayerConnected(i))
        {
             // check code
        }
    }
    return 1;
}