WSL - connection to cursor server failed

[mtlat (Marcelo Iampaglia)]

Where does the bug appear (feature/product)?

Cursor IDE

Describe the Bug

Connection to Cursor server failed: [wsl exec: installServerScript] Command failed with exit code 4294967295: stdout: A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond.
Error code: Wsl/Service/0x8007274c

Steps to Reproduce

open Cursor IDE, wait.

Operating System

Windows 10/11

Version Information

2.5.17 (user setup)

Does this stop you from using Cursor

Sometimes - I can sometimes use Cursor

This seems to be related to running docker containers.

[deanrie]

Hey, thanks for the report. Error 0x8007274c is a Windows socket timeout. The WSL process stops responding, and Cursor can’t reach its server. The Docker connection you mentioned is a good clue, since Docker Desktop and WSL together can quietly hit resource limits.

Try these steps in order:

1. In PowerShell, run wsl --shutdown, then reopen Cursor
2. Create or edit C:\Users\<username>\.wslconfig to increase resource limits:

   [wsl2]
   memory=8GB
   processors=4
   

   Then restart WSL with wsl --shutdown. This is especially important if you run Docker containers at the same time as Cursor.
3. Update WSL: wsl --update
4. Inside WSL, remove Cursor’s server files: rm -rf ~/.cursor-server, then reconnect from Cursor

A couple questions to narrow it down:

• Which WSL distro are you using?
• How many Docker containers are usually running when this happens?
• What does wsl --version show in PowerShell?

A similar issue is described here: Cursor fails after some time when using WSL

Let me know if any of these steps helped.

[mtlat (Marcelo Iampaglia)]

Thank you for your answer @deanrie.
I have followed your steps and for now it seems stable again.

I additionally updated and cleaned up my docker. Removed images, containers etc.

I use only one container at the same time.

my wsl version:

also the –update did not install a newer version:

I am running ubuntu wsl version 2:

and I am not on the latest ubuntu, I could/should update that:

but for now, things look stable agian. Thank you!