When the Host is rebooted it may happen that the TLS-Gateway is unable to start.
Error in the TSL-Gateway Log :
20220307/144221.270 - U02000401 Received JCP server list: 'https://muntest000594.bpc.broadcom.net:2317/;https://muntest000594.bpc.broadcom.net:2318/'
20220307/144221.274 - U02000308 Agent certificate file './security/TLS_GTWAY_01.cert' was loaded, expiration date 'Sat Feb 18 19:55:19 CET 2023'.
20220307/144221.284 - U02000308 Agent certificate file './security/TLS_GTWAY_01_ca.pem' was loaded, expiration date 'Thu Feb 13 16:39:50 CET 2042'.
20220307/144221.286 - U02000314 Initial challenge has been requested.
20220307/144221.471 - U00029408 Signature verification of agent 'TLS_GTW_01' failed.\
20220307/144221.472 - U02000041 Shutdown Agent 'TLS_GTW_01'.
20220307/144221.475 - U02000383 Web Socket connection closed with status code '1006 (Disconnected)'.
20220307/144221.487 - U02000002 Agent 'TLS_GTW_01' version '21.0.2+build.31' ended abnormally.
This is prone to be configuration issue.
Check the configuration file of the TLS Gateway, make that the parameter is not commented
Release : 21.0.2 Component : AUTOMATION ENGINE
The problem can be easily solved in the client 0 > Administration > Agent > TLS-GW > Reset Agent Public Key.
Uncomment this line in the configuration file and restart the TLS-Gateway.