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Title
TPAM Health and Welfare Errors: "A Windows System Error occurred. EventID:36874 Source:TPAMCONSOLE Description:Schannel" -
Description
Errors in Alert Logs:
"A Windows System Error occurred. EventID:36874 Source:TPAMCONSOLE Description:Schannel" or"A Windows System Error occurred. EventID:36888 Source:TPAMCONSOLE Description:Schannel" -
Cause
These errors do not indicate any issue with TPAM. The errors related to HTTPS traffic, and are indicative of malformed HTTPS requests sent to TPAM (such as would be seen from a vulnerability scan or a incorrectly configured client browser). -
Resolution
EventID 36888 Description: Schannel, 10 1203
If a user tries to access a web site using HTTP but specifies an SSL port in the URL then this event is logged. This event is expected as the client is trying to use the wrong port or the wrong protocol to access the site.
EventID 36888 Description: Schannel, 40 1204
A fatal alert was generated and sent to the remote endpoint. This may result in termination of the connection.
EventID 36874 Description: Schannel, TLS 1.0
An TLS 1.0 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 SSL connection request has failed.
EventID 36888 Description: Schannel, 40 1205
A fatal alert was generated and sent to the remote endpoint. This may result in termination of the connection.
EventID 36874 Description: Schannel, SSL 3.0
An SSL 3.0 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 SSL connection request has failed.