Selenium Grid Extras 2.0.4 none node avaiable - Error forwarding the new session

I tried to use Selenium Grid Extras from the page: https://github.com/groupon/Selenium-Grid-Extras

I managed to use it successfully on my private machine. I ran the command "java -jar Selenium-Grid-Extras-Jar.jar" and after configuration (https://ibb.co/j4wZPH), I was able to see the nodes:

Then I ran the tests via IntellIj and everything passed as expected:

But when I try to do the same process on my corporate laptop, I get the error:

And when I go to: http://localhost:4444/grid/console - I see this:

I tried to figure out why I get this error and found the answer (https://stackoverflow.com/a/42187314/7967616) that Selenium Grid doesn't have any node available with a browser that has the desired capabilities.

But during configuration I set the PORT 5555 for Selenium Grid Node and it works on my private laptop. I could not find the answer in the internet, so my hunch is that there is some problem with that PORT, but I don't know how I can check this.

Anyone had similar issues or problems or can help me with this issue? Will be grateful for any help.