TLS errors, Multiple Collectors, Multiple Clients | Product Discussions

joshlowit1 · 2021-08-18T22:00:07Z

Hi Team, I have an issue where in the last few months we are seeing a very large increase in TLS SChannel Windows Events on our collectors and was wondering how to try and resolve them. Was there an update or change to LM collectors that could explain the below behavior? This seems to only happen on Collectors (On a regular basis) and happens to multiple clients. I have checked the collector version and also used the LogicMonitor_Collector_TLSVersion and the servers are using TLS 1.2. The most common events and the descriptions are below. Please let me know if I need to provide any other information. Most Common Event Alerts: 36874 - An TLS 1.2 connection request was received from a remote client application, but none of the cipher suites supported by the client application are supported by the server. The TLS connection request has failed. 36887 - A fatal alert was received from the remote endpoint. The TLS protocol defined fatal alert code is 70. 36888 - A fatal alert was generated and sent to the remote endpoint. This may result in termination of the connection. The TLS protocol defined fatal error code is 10. The Windows SChannel error state is 1203.

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