Error Message List: HENNGE Connect – HENNGE One Help Center

When accessing a URL, the "ERR_NGROK_3200" Error message is displayed+

The following messages may also appear in the Windows Server event Logs.

msg="heartbeat timeout, terminating session" 
msg="session closed, starting reconnect loop"

This issue may be caused by the version of the HENNGE Connect Agent.
Please follow the Procedure below to update the HENNGE Connect Agent and Confirm whether the issue is resolved.
※ There is no problem if the ngrok version is 3.3.3 or later, as confirmed in the version check Procedure in the article below.
About the HENNGE Connect Agent update Procedure

Additionally, the "ERR_NGROK_3200" Error message may occur because the tunnel to the agent server is not established, and it may not be possible to connect to the FQDNs included in the agent server's supported requirements.
Please review the Settings of any firewalls, L3 switches, or proxy servers on the network path from the agent server to the internet, and Confirm that communication Grant Permissions to the FQDNs listed under "HENNGE Connect Agent" on the HENNGE One supported help page are properly configured.
HENNGE One System Requirements

For Errors other than those listed above, please Confirm the Error details from the URL below.
※ Error example: ERR_NGROK_●●●●　(numbers are shown in place of the ● symbols)
https://ngrok.com/docs/errors/ (external site)

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