B seems to be the problem - he cant join any public game.

3 Players - A, B and C

A and B live together, using the same Internet with their 2 PCs and their 2 steam accounts. C has own PC, INternet and Steam.

If A is hosting C can join, but B cant.
If B is hosting A can join, but C cant.
If C is hosting A can join, but B cant.

No useful error message ...

Maybe the mods transfer this topic to "Ideas and Suggestions"
Im sry

Hi im from germany and i use the german alternative keyboard layout "NEO2"

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just google it, im not allowed to post the url in this forum
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The layout is awesome, but always when i have to reinstall factorio i have to change my keys in factorio to adjust it to neo.
The same problem ...