How to troubleshoot webinar issues

Thank you for registering to one of our webinars! In the unlikely event you come across issues logging into the platform, please follow the below steps to resolve.

In preparation, we recommend you do a quick system check to make sure you can log into the platform without any issues.
We recommend you chat with your IT department as they will be able to resolve these for you.


Firstly, if you have not been using Google Chrome we recommend you copy and paste the link [you can find this link in the reminder email Demio sent] into Google Chrome.
If you have not updated Chrome to the latest version, please do so now. In some cases using Chrome in Incognito mode will allow you to log in.
Do another system check and if you are still unsuccessful there is further instruction below.

Information that will assist your IT specialist

When it comes to the ports used by the Demio streaming service, their recommendations are as follows:

  • Minimum: they require TCP port 443/8443 to be open. Some firewall/proxy rules only allow for SSL traffic over port 443. You will need to make sure that non-web traffic can also pass over this port.
  • Better: In addition to the minimum being met, they also recommend that UDP port 3478 is open.
  • Best: For the best possible experience, they recommend that UDP ports 1025 – 65535 be open.

They use dynamic IP addresses, please make sure to whitelist the below domains:


If you or your IT Specialist has any questions or concerns, please reach out to us.