Social Login Error Resolution Guide

If an error occurs with social login (Facebook, Google, Naver, Kakao), please try again in the Chrome web browser. If the error persists even in the Chrome web browser, please access the link provided below and proceed step by step.

How to configure when using Chrome web browser (PC)

1. Copy the link below, enter it, and then on the screenAllow All CookiesPlease set it up.chrome://settings/cookies

2. Copy the link below, enter it, and then on the screenDelete all displayed itemsPlease click the button.chrome://settings/content/all?searchSubpage=class101.net

How to configure when using Chrome mobile web browser (phone)

1. Top rightThree dots iconPlease click.

2. SettingsClick on.

3. BelowSite SettingsClick on it.

4. BelowThird-party cookiesClickAllow third-party cookiesPlease check.

5. Press the back button (←) and click Saved Data at the bottom again.

6. Press the magnifying glass icon to search for Class.net and click Clear All Data at the bottom.

After completing the above process, please try logging in again.