How do I connect localhost with yamcs server in YAMCS STUDIO

[JohnAdam-123]

I tried to follow the instructions on how to connect yamcs server to localhost, but it tells me that server is not available.

[04:46:48.409] Yamcs Studio v1.7.6
[04:46:48.410] Workspace: /C:/Users/hp/yamcs-studio/
[04:47:09.669] Connecting to http://localhost:8090
[04:47:09.882] Connection to http://localhost:8090 failed: Connection refused: getsockopt: localhost/127.0.0.1:8090
[04:47:09.883] Exception while connecting to Yamcs: Server is not available: Failed to connect

[xpromache]

if you can connect with a browser, I guess it's some antivirus or firewall running on your windows.

[JohnAdam-123]

so what do I do then? Any ideas...