[WSL 2] WSL 2 cannot access windows service via localhost:port

[hzhangxyz]

Is your feature request related to a problem? Please describe.
although now windows can access wsl service with localhost:port via "localhostForwarding", but wsl cannot access windows service via localhost:port, please fix it, Thank you.

Describe the solution you'd like
When WSL 2 try to connect to localhost:port and be refused, try to connect to windows again.

[numeric-lee]

I was able to use graphic applications in WSL using XMING and Export DISPLAY=:0.0

However, once I upgraded to WSL2 and switching to Export DISPLAY = 172.28.801:0 (my host#) it failed to connect

Things tried:

downloading VcXsrv
switching to another graphics application
running vcxsrv -ac from bash (command not recognized)
running vcxsrv -ac from powershell (command not recognized)
turning firewall off
My Windows 10 build: 19041.1

Here is a typical error message

QStandardPaths: XDG_RUNTIME_DIR not set, defaulting to '/tmp/runtime-lw' qt.qpa.screen: QXcbConnection:
Authorization required, but no authorization protocol specified
Could not connect to any X display.

In #4106 you advise to run "vcxsrv -ac" from the bash command line and at least one user accepted that as a solution. I downloaded vcxsrv.exe from sourceforge as an .exe outside of bash, and I see no way to execute it from bash

Many thanks

[gx761]

is there any update?

[numeric-lee]

solved #4793 (comment)