Problems connecting windows and ubuntu

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I have problems making connections between linux and windows nodes. Testing separately, in only one OS, both work correctly.

Once network is configured, I can ping in any direction even with hostname or IP. All firewalls are deactivated.

If I launch the core in linux, the windows node reports :"←[31mUnable to contact my own server at [http://myserver:52540/]."

But even more, if the core is launched in windows I can run without problem. Nodes are working in linux and windows and communicates perfectly.

Does anyone had the same problem? how can I fixed it?

Thanks for all in advance.