[10MIN]

Why you don't reuse things?

Код:

public OnPlayerConnect(playerid)
{
    new query[117];
    GetPlayerIp(playerid, PlayerInfo[playerid][IPa], 16);
    mysql_format(c_handle,query, sizeof(query), "SELECT * FROM bans WHERE `pBannedIP` = '%e' OR `pBanned` = '%e'", PlayerInfo[playerid][IPa], GetPlayerNameEx(playerid));
    mysql_tquery(c_handle, query, "OnPlayerBanCheck", "i", playerid);

    mysql_format(c_handle,query, sizeof(query), "SELECT Name, Admin, Reason, unban FROM `tban` WHERE `Name` = '%e' OR `IP` = '%e'", GetPlayerNameEx(playerid),ReturnPlayerIp(playerid));
    mysql_tquery(c_handle, query, "tbancheck", "i", playerid);

Remember: Reuse things when you can and don't make string arrays very big... Use Letter Counter to count the characters, so you don't have very long strings...
And I don't see anything that can cause the connection to drop...