There are three ways to solve the problem of not being able to connect to the LOL server. Method 1: Restart the computer (sometimes a restart is all it takes). Method 2: Disable the use of proxy servers (please backup the proxy server address before making changes). 1. Open the IE browser and go to Tools -> Internet Options (O): 2. Click on Connections -> LAN Settings (L): 3. Deselect all options -> Click on OK: Note: Before making changes, please note down the proxy server address and the original settings. If the website cannot be accessed after disabling the proxy server, please reset the original settings. Method 3: Reset IE and set it as the default browser. 1. Open the IE browser and go to Tools -> Internet Options (O): 2. Click on Advanced -> Reset (S)... (After resetting, the IE browser will automatically be set as the default browser): 3. Check "Delete personal settings (P)" -> Click on Reset (R): 4. After resetting, click on "Settings" -> "Internet Options (O)" -> Click on "Programs" -> Click on "Make Default (D)" -> Click on "OK":