java.net.ConnectException: Connection refused

[parasange]

java.net.ConnectException: Connection refused

[twak]

To avoid it downloading the offending zip file automatically, you can download it manually.

1. download the zip file into the data root directory (the same directory that contains tweed.xml)
2. extract the file to the same location (it should create a directory called network_inputs also in the root directory)
3. don't delete the zip file (it's used as a marker to avoid downloading again).

The proxy thing is strange. If your system proxy is setup, you could also try adding -Djava.net.useSystemProxies=true when running the jar. Which java version are you using?

[parasange]

Adding the option -Djava.net.useSystemProxies=true unfortunately still did not succeed and raises same error. I'm using JRE 10.0.2
With manually downloaded .zip file it works, thanks for fast reply!