Adobe Connect Support Blog

July 31, 2025 /Adobe Connect 12 /Meeting /

Adobe Connect Meeting Pop-up Error Reads: Unable to Establish Audio/ Video Connection Due to Firewall/ Web Proxy Settings

ISSUE DESCRIPTION: Meeting audio is not connecting with error – Unable to establish Audio/ Video connection due to firewall/ web proxy settings

ENVIRONMENT:

  • Adobe Connect Meeting
  • Adobe Connect version 12.7 and later

ANALYSIS:

  • Test to confirm that the client affected is facing same issue in a Meeting joined from browser instead of the Adobe Connect Meeting Application.
  • Check in the connectcefapp.log for an error similar to these:
    • [2025-07-24 11:11:28.469573] [0x00005908] (error) : JS : (index.6603ab2c968a81fc2a8b.js?5f567a2b48f070f43e62:2) : StreamClient : 11:11:28.468 ConnectionManager:openSFUDownstreamConnection: Exception: Connection failed. (ConnectionNotEstablished Could not establish connectivity with remote peer. Shutting down connection.)
    • [2025-07-24 11:11:28.533558] [0x00005908] (info) : JS : (index.6603ab2c968a81fc2a8b.js?5f567a2b48f070f43e62:2) : StreamClient : 11:11:28.531 FM:Setting connection 387f7356ce284553bd6773520c87471d state to failing. Error: ConnectionNotEstablished Could not establish connectivity with remote peer. Shutting down connection.

SOLUTION:

Adobe Connect 12, Meeting