Very recently, we’ve had an abundant amount of issues around environments using unconstrained delegations failing. What is unconstrained delegations you might ask? It’s what we call “Full Trust” delegations, and my former Escalation Engineer nicely details the differences between constrained delegations and unconstrained delegations in his post My Kerberos Checklist. Consider the scenario: You are […]
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Category: SQL Server
The client and server cannot communicate...
This is a 3rd installment of the error “The client and server cannot communicate, because they do not possess a common algorithm“. You can find the first 2 blogs here: Part 1 Part 2 In Part 1, I alluded to another cause of the SCHANNEL error, and it boils down to issues with the Ciphers […]
What client provider am I using to conne...
In my previous post, I discussed the following error, and how to resolve it. The client and server cannot communicate, because they do not possess a common algorithm In this post, I’m going to answer some common questions about the provider you are using to connect to SQL Server, and which updates you should apply […]
The client and server cannot communicate...
Let’s talk about TLS 1.2 Support for SQL Server. You may have seen the errors below when trying to start SQL Server after a reboot, or trying to connect to SQL Server: The client and server cannot communicate, because they do not possess a common algorithm A connection was successfully established with the server, but […]