
Please also see the TCP Optimizer FAQ for answers to frequently asked questions. Some of the settings may be specific to newer revisions of Windows, and not present in earlier versions. The software supports Windows 7, 8, 8.1, 10 (including newer revisions), 2012 Server (including R2), 2019 Server. But before moving on, keep in mind that it is okay to re-enable the Anti-virus software at this stage but we still recommend to keep it disabled during the rest of the troubleshooting process.This documentation is for version 4 of the SG TCP Optimizer. However, if there is no improvement in the download speed then move to the next solution. If download speed has increased after disabling Anti-Virus and Firewall then add an exception for the game in Anti-Virus & firewall settings.

Turn Windows Defender Firewall off in type of network


So, disabling the Anti-Virus and turning off the Firewall may solve the “League of Legends download slow” issue.Īfter disabling the Anti-Virus open the game League of Legends to see if the download speed has improved. And as a result, League of Legends does not access to some system’s file and services, which will reduce the downloading speed of the game. They are supposed to protect the computer from the malware, but sometimes they can show false positive by blocking legitimate applications like League of Legends. Sometimes, the system’s antivirus & firewall interfere with online gaming activities.
