Originally Posted by Kalcor

The 'Kicking {} because they didn't logon to the game.' message is normal. It means the client is too slow to connect and probably has a high amount of packet loss. In previous versions of the SA-MP server, the same problem could happen, although the player would eventually just have to quit and try reconnecting.

Are you sure there aren't external factors causing this problem? There could some type of packet filtering in the firewall. The physical server which hosts the game server could be under attack.

You can PM me a bigger server log if you like. If most servers work fine and there are problems like this, it usually turns out that it's not caused by SA-MP.