In some cases, simply refreshing your browser can restore connectivity.
If this doesn’t help, your network's firewall might be blocking Lookback Live.
Help is at hand though – we have created a special tool to test your (or your participant's) network connection:
Please click the link above to run the tests and if any of the checks fail ask your IT team to review our documentation on troubleshooting firewall issues. If you're still unable to use Live after getting the tests to pass, please contact our support and send us the details from the test.