Most people can use Crowdcast without making any changes to their network. However, if you're joining from a workplace, school, organization, or other network with strict security controls, firewall restrictions may prevent you from going live, joining the stage, or watching an event.
When firewall restrictions may be the problem
A firewall or network restriction may be involved if you're having trouble accessing Crowdcast on your organization's network, particularly if Crowdcast works normally when you switch to another network, such as a mobile hotspot.
If that's the case, we recommend sharing the information below with your IT or network administrator.
Allow these domains
Ask your IT team to allow access to the following domains and their subdomains:
crowdcast.iolivekit.cloudcrowdcats.usbackblazeb2.com
Allowing these domains helps ensure that hosts, speakers, and attendees can access and participate in Crowdcast events without disruption.
Firewall and port requirements
If you're a host or guest speaker who needs to broadcast audio or video, your IT team may also need to review your firewall configuration.
Minimum requirement
Ensure that TCP port 443 is open.
Some firewall or proxy rules restrict SSL traffic over this port, which can interfere with connecting to Crowdcast.
For the best experience
For optimal audio and video performance, allow:
UDP ports 20000–65000
This allows Crowdcast's video infrastructure to establish the best available connection for real-time audio and video.
Information for your IT team
Crowdcast uses LiveKit as our video infrastructure provider.
For more detailed network and firewall requirements, your IT team can refer to LiveKit's firewall configuration documentation.
When following LiveKit's instructions, use the following Crowdcast subdomain when prompted:
crowdcast-x0d77f6r
Still having trouble?
If you've confirmed the requirements above and are still unable to connect, try joining Crowdcast from a different network, such as a mobile hotspot.
If Crowdcast works on another network, this is a good indication that a firewall, VPN, proxy, or other security setting on the original network may be restricting the connection.
If you're still having trouble, reach out to us and we'll be happy to help.
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