I'm getting an error when trying to connect to my database server.
I'm using SQL server reporting services, and my DB admin created a report to test the connection.
Starting today, my SQL server reporting services are not working.
I get this error message:
The report server couldn't connect to the data source using the information you entered. Make sure you've entered the connection string and any credentials correctly.
I have tried this form different work stations, still get the same error.
I double checked my company firewall and it's not blocking the traffic.
I ran a wireshark on the db1 server, the client initiating the transaction and I see from the wireshark that the domain controller it connects to first is not allowing the connection.
The specific error is: KRB error: KRB5KDC_ERR_C_PRINCIPAL_UNKNOWN
I looked this up online, but can't find much.
Every stream I looked at in wireshark shows me the same thing. So something on my DC is not allowing this traffic.