1. Uninstall the game and delete the game folder.
2. restart the computer.
3. Turn off such things like MSN, Skype, uTorrent, etc.
4. Antivirus and firewalls may sometimes block programs like ToP from accessing the internet. You need to set an access for ToP to connect to internet, in the antivirus / firewall in used.
5. Close windows firewall, go to : Start - Control Panel - Windows Firewall - Close.
6. Close auto patch (find the game folder and you will see a file names update.cfg open it with notepad form, you will see server_ip = download.igg.com/top2/update/ inside, remove this download.igg.com/top2/update/ and save file. ) and install the game and completed patch.
http://top2.igg.com/download/client.php This is the patch and game website, please check it carefully.