Unable to connect internal server of Rocket chat when using VPN

Description

Below is the step and issue that I’m facing with:

  1. Do not connect VPN yet
  2. Run Rocket chat with internal connection (I’m using an internal server, only connection for the people from my company with an URL provided)
    => Rocket chat run successful and connect without any error
  3. Connect Cisco Anyconnect VPN
    => Rocket chat is time out and could not connect

Server Setup Information

  • Version of Rocket.Chat Server: 2.17.0
  • Operating System: Win10 x64
  • Deployment Method:
  • Number of Running Instances:
  • DB Replicaset Oplog:
  • NodeJS Version:
  • MongoDB Version:
  • Proxy:
  • Firewalls involved:

Any additional Information

@here. Anyone can help?