SSPI Handshake Failed

We suddenly noticed we are getting the following errors on our SQL Servers coming from one of the SolarWinds Application server.  The Agent is installed on my SQL server and testing fine. 

SSPI Handshake failed with error code 0x8009030c, state 14 while establishing a connection with integrated security; the connection has been closed. 

Reason: AcceptSecurityContext failed.  The Operating system error code indicates the cause of failure.  The login attempt failed [Client: xx.xx.xx.xx]

Please help if you can

  • It could be many things. First thing to check, though, is if you have an AppInsight for SQL application monitor assigned to that servere.

    If so, then edit the Application Monitor and check whether preferred polling method is set to agent or agentless.
    Also, unless you are authenticating with SQL (through the agent) using a local SQL account, then choose credential type option should be set to Windows credential.