"Failed to connect to server. IOException: Invalid handshake" or "Connection refused."
, which includes 1.20-style assets (though they may impact performance). ⚠️ Technical Reality of Eaglercraft 1.20 eaglercraft 120 1 fix
Eaglercraft uses WebSockets (ws:// or wss://), not raw TCP like Java Minecraft. The for this requires adjusting how you enter the server address. "Failed to connect to server
java -jar EaglercraftServer.jar --port 8081 eaglercraft 120 1 fix