This article describes our recommendations for configuring a firewall for use with Zendesk Chat. If your agents experience constant disconnections, lags or doubled messages — this article may be the solution!
For chat to have an optimal connection, consider the below:
- Traffic from *.zopim.com and *.zopim.io is on the Allowed Domains list on the firewall. (* is a wildcard and means all subdomains on the zopim.com and zopim.io domain).
- Zendesk Chat only uses ports 80 and 443, which should be open on all firewalls/VPNs as they are standard ports.
- Zendesk Chat relies on Amazon for services. If you are blocking Amazon IPs, it could negatively impact chat performance.
- Ensure this article has been adhered to in terms of allowed IPs: Configuring your firewall for use with Zendesk
Finally, ensure you are not blocking any relevant IPs in Settings > Account > Security.