May 12, 2025 at 2:03 pm
Hi,
I have a workstation with SQL Express 2019 installed and I have a PC with a .NET application built in VB.NET.
The App logs in as Attendance and the SQL PC logs in as Phone System.
They are on the same domain and the SPNs match the server and Attendance has access to the DB in SQL permissions.
But i keep getting the error "SSPI handshake failed error code 0x80090311" in the SQL log the SQL services are setup on the default logons rebooting the box fixes but i cannot seem to locate the cause of why it suddenly looses connection.
May 13, 2025 at 11:08 am
Perplexity has a nice explenation and steps to try resolve the issue(s):
SSPI handshake failed error code 0x80090311
Johan
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