Forum Discussion
LightInTheDark
Nov 11, 2019Copper Contributor
Error code Connectivity_ICEWarn 0x80020 and Connectivity_ICEWarnEx 0x90
I'm seeing the following error codes in my MS Teams Session debug for a specific call in the admin portal: Connectivity_ICEWarn 0x80020 Connectivity_ICEWarnEx 0x9000 How should I interp...
Carl420-collab
Feb 10, 2025Copper Contributor
Interpreting Error Codes: Connectivity_ICEWarn 0x80020 & Connectivity_ICEWarnEx 0x90
These error codes are related to Interactive Connectivity Establishment (ICE), commonly used in Microsoft Teams, Skype, and VoIP applications. They typically indicate network connectivity issues affecting real-time communication.
Possible Causes & Fixes:
🔹 Firewall or Proxy Restrictions – Ensure WebRTC, STUN, and TURN traffic is not blocked.
🔹 NAT Configuration Issues – Use a VPN or configure port forwarding for better connectivity.
🔹 Corporate Network Policies – Contact your IT admin to allow the required ports and protocols.
🔹 Internet Connection Issues – Test with another network to identify local connectivity problems.
For more troubleshooting tips, visit:
🔹 ReminiGeek
🔹 NetworkVents
🔹 TMWHTS