How to stop internet download on Kernel launch?

Questions
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1

Hi, I have MMA 11.2 on Ubuntu 16.04.2.

Staring a kernel, say, 1+1 results in a large download by MMA.
I can also see it spawns a java process.

Any hints, tips or incantations on how to stop this?

Thanks in advance
Kind regards
Mark

2

Go to Preferences → Internet → uncheck Allow the Wolfram System to access the internet.

The setting may be in a different location in older versions, but it shoulnd’t be hard to find.