Troubleshooting & System Requirements
Help with known issues
- Troubleshooting Checklist
- Is My Browser Supported?
- My page is slow to load or stuck on loading
- How to enable cookies
- I Can't Sign in to CK-12 with My Login Credentials
- Videos Are Not Playing on My Windows Device
- Error Message: "You are reading an older version...Please edit the flexbook to update this concept."