Where possible, sign in from your personal laptop or device rather than a corporate/work laptop. Company security software and firewalls are sometimes configured to block or delay verification emails, which can make the OTP appear "stuck" even though it was sent.

If the OTP email doesn't show up in a minute or two, check your Spam / Junk / Promotions folder before requesting a new one.

Each code is valid for 5 minutes, and only the most recently sent code works — requesting a new one (including Resend) cancels the previous code.

Not receiving the SMS code? It's usually because no mobile number is on file for your profile. Use the emailed code in the meantime, and ask your Training Coordinator to add or update your number with the correct country code.

Try to complete login in a single browser tab without switching away. If you see "session expired," simply start again from the email step rather than reusing the old screen.

After several attempts in a short time, sign-in pauses briefly for security. If this happens, wait about 5 minutes and then request a fresh code.