@tobias.koetter i hope this message finds you well
with reference to the same topic
i used to fetch data from ms sql for a month then suddenly i received the same message of this topic.
I ve tried installed the jdbc driver but the same error returns
i was using the official driver od ms sql v9.4 and just to day it started giving me the error
can you please advise and support
I’m not sure precisely what the problem is, but is the SQL Server on the same machine as your KNIME Analytics Platform? The reason I ask is that 127.0.0.1 is, I think, a loopback connection, so it would only work for a machine to talk to itself. If you are looking to connect with a different computer, you will need to configure it differently. If you have an IT department, you probably should ask them for help.
If, on the other hand, both are running on your computer, then it’s not so clear, but it appears to be an issue at the Internet layer. Can you connect independent of KNIME?