Troubleshooting: QR codes in passcards do not work
The following are potential reasons why QR codes in passcards may not work:
- QR codes are too small
- QR codes are low-quality printouts
- QR codes were scanned in low lighting
- The device camera used to scan the QR codes is older or poor quality
For best results, D2L recommends using high-quality print-outs for passcards (1200dpi and at 100% scale) and optimal lighting when scanning QR codes.
Important: D2L recently changed the format of the passcards to add at-home support. If you're using a printed QR code, you may need to print a new one for it to work with home mode. For more information, see .