Unable to Connect my Watch 4 Classic to Watch Face Studio

I have been experiencing difficulties in connecting my Watch 4 Classic to Watch Face Studio. I have tried both pinging the device and using adb connection, and both methods were successful. I have also disabled the firewall on my computer, but I still cannot establish a connection.

First, You need to use “pair” comment.
For example
adb pair
And pairing code: 987408

And than to use connect comment.
For example
adb connect

I have also tried this method and obtained the same result.

The way you did it is to try the features supported by the latest version of WFS.
What I am talking about is the method using ADB of platform-tools.
This method is forcibly connecting the WFS and Galaxy Watch when the connection between the WFS and Galaxy Watch is not possible.