Knowledge Base/League of Legends Player Support/Technical Support

Identifying your firewall(s)

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posted this on July 01, 2013 18:24


Most players have THREE firewalls between them and the League of Legends servers and do not even realize it. 

It is important that when you are experiencing firewall related problems that you make a check list and properly configure each of these firewalls:

  • Windows Firewall:

Windows Firewall is a component of ALL modern day Windows Operating systems. It was introduced in Windows XP Service Pack 2 and has since been included in all versions of Windows. This makes it the most common firewall in use today.

  • 3rd Party Software Firewall:

These are consumer firewalls. These tend to be the most aggressive firewalls and cause most of the problems that players experience. There are many free and very good firewalls available today. Many times Anti-Viruses such as Norton Internet Security or McAffee include firewalls with their software. Here is a short list of some of the more common 3rd Party Firewalls:


  • Norton Internet Security
  • McAffee
  • Kapersky
  • ESET NOD32
  • IOBit BitDefender
  • AVG
  • Avira Antivir
  • ZoneAlarm
  • Peerblocker
  • Avast
  • Windows Defender and Microsoft Security Essentials


  • Router Firewall:

This firewall is implemented on most consumer grade routers. Linksys, Belkin and many more brands all include built in firewalls in their routers. These firewalls are less restrictive, however, and usually not the cause of the problem (with a few exceptions). Usually you can disable the firewall under the "Security Settings" or similarly named tab in your router configuration page. Occasionally you may have to forward ports on your router to play League of Legends.

Once you have identified your firewalls, please have a look at our troubleshooting guide.

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